doc: convert merge options to new synopsis format

- Use _<placeholder>_ instead of <placeholder> in the description
- Use `backticks` for keywords and more complex option
descriptions. The new rendering engine will apply synopsis rules to
these spans.

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: jnavila

Documentation/merge-options.adoc

@@ -1,23 +1,23 @@
---commit::
---no-commit::
+`--commit`::
+`--no-commit`::
 	Perform the merge and commit the result. This option can
-	be used to override --no-commit.
+	be used to override `--no-commit`.
 ifdef::git-pull[]
 	Only useful when merging.
 endif::git-pull[]
 +
-With --no-commit perform the merge and stop just before creating
+With `--no-commit` perform the merge and stop just before creating
 a merge commit, to give the user a chance to inspect and further
 tweak the merge result before committing.
 +
 Note that fast-forward updates do not create a merge commit and
-therefore there is no way to stop those merges with --no-commit.
+therefore there is no way to stop those merges with `--no-commit`.
 Thus, if you want to ensure your branch is not changed or updated
-by the merge command, use --no-ff with --no-commit.
+by the merge command, use `--no-ff` with `--no-commit`.
 
---edit::
--e::
---no-edit::
+`--edit`::
+`-e`::
+`--no-edit`::
 	Invoke an editor before committing successful mechanical merge to
 	further edit the auto-generated merge message, so that the user
 	can explain and justify the merge. The `--no-edit` option can be
@@ -35,31 +35,31 @@ they run `git merge`. To make it easier to adjust such scripts to the
 updated behaviour, the environment variable `GIT_MERGE_AUTOEDIT` can be
 set to `no` at the beginning of them.
 
---cleanup=<mode>::
+`--cleanup=<mode>`::
 	This option determines how the merge message will be cleaned up before
 	committing. See linkgit:git-commit[1] for more details. In addition, if
-	the '<mode>' is given a value of `scissors`, scissors will be appended
+	the _<mode>_ is given a value of `scissors`, scissors will be appended
 	to `MERGE_MSG` before being passed on to the commit machinery in the
 	case of a merge conflict.
 
 ifdef::git-merge[]
---ff::
---no-ff::
---ff-only::
+`--ff`::
+`--no-ff`::
+`--ff-only`::
 	Specifies how a merge is handled when the merged-in history is
 	already a descendant of the current history.  `--ff` is the
 	default unless merging an annotated (and possibly signed) tag
 	that is not stored in its natural place in the `refs/tags/`
 	hierarchy, in which case `--no-ff` is assumed.
 endif::git-merge[]
 ifdef::git-pull[]
---ff-only::
+`--ff-only`::
 	Only update to the new history if there is no divergent local
 	history.  This is the default when no method for reconciling
 	divergent histories is provided (via the --rebase=* flags).
 
---ff::
---no-ff::
+`--ff`::
+`--no-ff`::
 	When merging rather than rebasing, specifies how a merge is
 	handled when the merged-in history is already a descendant of
 	the current history.  If merging is requested, `--ff` is the
@@ -81,40 +81,40 @@ With `--ff-only`, resolve the merge as a fast-forward when possible.
 When not possible, refuse to merge and exit with a non-zero status.
 endif::git-merge[]
 
--S[<keyid>]::
---gpg-sign[=<keyid>]::
---no-gpg-sign::
-	GPG-sign the resulting merge commit. The `keyid` argument is
+`-S[<key-id>]`::
+`--gpg-sign[=<key-id>]`::
+`--no-gpg-sign`::
+	GPG-sign the resulting merge commit. The _<key-id>_ argument is
 	optional and defaults to the committer identity; if specified,
 	it must be stuck to the option without a space. `--no-gpg-sign`
 	is useful to countermand both `commit.gpgSign` configuration variable,
 	and earlier `--gpg-sign`.
 
---log[=<n>]::
---no-log::
+`--log[=<n>]`::
+`--no-log`::
 	In addition to branch names, populate the log message with
-	one-line descriptions from at most <n> actual commits that are being
+	one-line descriptions from at most _<n>_ actual commits that are being
 	merged. See also linkgit:git-fmt-merge-msg[1].
 ifdef::git-pull[]
 	Only useful when merging.
 endif::git-pull[]
 +
-With --no-log do not list one-line descriptions from the
+With `--no-log` do not list one-line descriptions from the
 actual commits being merged.
 
 include::signoff-option.adoc[]
 
---stat::
--n::
---no-stat::
+`--stat`::
+`-n`::
+`--no-stat`::
 	Show a diffstat at the end of the merge. The diffstat is also
 	controlled by the configuration option merge.stat.
 +
-With -n or --no-stat do not show a diffstat at the end of the
+With `-n` or `--no-stat` do not show a diffstat at the end of the
 merge.
 
---squash::
---no-squash::
+`--squash`::
+`--no-squash`::
 	Produce the working tree and index state as if a real merge
 	happened (except for the merge information), but do not actually
 	make a commit, move the `HEAD`, or record `$GIT_DIR/MERGE_HEAD`
@@ -123,38 +123,38 @@ merge.
 	the current branch whose effect is the same as merging another
 	branch (or more in case of an octopus).
 +
-With --no-squash perform the merge and commit the result. This
-option can be used to override --squash.
+With `--no-squash` perform the merge and commit the result. This
+option can be used to override `--squash`.
 +
-With --squash, --commit is not allowed, and will fail.
+With `--squash`, `--commit` is not allowed, and will fail.
 ifdef::git-pull[]
 +
 Only useful when merging.
 endif::git-pull[]
 
---[no-]verify::
+`--[no-]verify`::
 	By default, the pre-merge and commit-msg hooks are run.
 	When `--no-verify` is given, these are bypassed.
 	See also linkgit:githooks[5].
 ifdef::git-pull[]
 	Only useful when merging.
 endif::git-pull[]
 
--s <strategy>::
---strategy=<strategy>::
+`-s <strategy>`::
+`--strategy=<strategy>`::
 	Use the given merge strategy; can be supplied more than
 	once to specify them in the order they should be tried.
 	If there is no `-s` option, a built-in list of strategies
 	is used instead (`ort` when merging a single head,
 	`octopus` otherwise).
 
--X <option>::
---strategy-option=<option>::
+`-X <option>`::
+`--strategy-option=<option>`::
 	Pass merge strategy specific option through to the merge
 	strategy.
 
---verify-signatures::
---no-verify-signatures::
+`--verify-signatures`::
+`--no-verify-signatures`::
 	Verify that the tip commit of the side branch being merged is
 	signed with a valid key, i.e. a key that has a valid uid: in the
 	default trust model, this means the signing key has been signed by
@@ -165,39 +165,39 @@ ifdef::git-pull[]
 Only useful when merging.
 endif::git-pull[]
 
---summary::
---no-summary::
-	Synonyms to --stat and --no-stat; these are deprecated and will be
+`--summary`::
+`--no-summary`::
+	Synonyms to `--stat` and `--no-stat`; these are deprecated and will be
 	removed in the future.
 
 ifndef::git-pull[]
--q::
---quiet::
-	Operate quietly. Implies --no-progress.
+`-q`::
+`--quiet`::
+	Operate quietly. Implies `--no-progress`.
 
--v::
---verbose::
+`-v`::
+`--verbose`::
 	Be verbose.
 
---progress::
---no-progress::
+`--progress`::
+`--no-progress`::
 	Turn progress on/off explicitly. If neither is specified,
 	progress is shown if standard error is connected to a terminal.
 	Note that not all merge strategies may support progress
 	reporting.
 
 endif::git-pull[]
 
---autostash::
---no-autostash::
+`--autostash`::
+`--no-autostash`::
 	Automatically create a temporary stash entry before the operation
 	begins, record it in the ref `MERGE_AUTOSTASH`
 	and apply it after the operation ends.  This means
 	that you can run the operation on a dirty worktree.  However, use
 	with care: the final stash application after a successful
 	merge might result in non-trivial conflicts.
 
---allow-unrelated-histories::
+`--allow-unrelated-histories`::
 	By default, `git merge` command refuses to merge histories
 	that do not share a common ancestor.  This option can be
 	used to override this safety when merging histories of two

Documentation/rerere-options.adoc

@@ -1,5 +1,5 @@
---rerere-autoupdate::
---no-rerere-autoupdate::
+`--rerere-autoupdate`::
+`--no-rerere-autoupdate`::
 	After the rerere mechanism reuses a recorded resolution on
 	the current conflict to update the files in the working
 	tree, allow it to also update the index with the result of