SKIP_DASHED_BUILT_INS: do not skip the bin/ programs

The idea of the `SKIP_DASHED_BUILT_INS` option is to stop hard-linking
the built-in commands as separate executables. The patches to do that
specifically excluded the three commands `receive-pack`,
`upload-archive` and `upload-pack`, though: these commands are expected
to be present in the `PATH` in their dashed form on the server side of
any fetch/push.

However, due to an oversight by myself, even if those commands were
still hard-linked, they were not installed into `bin/`.

Noticed-by: Michael Forney <mforney@mforney.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: dscho

Makefile

@@ -2981,15 +2981,12 @@ endif
 	} && \
 	for p in $(filter $(install_bindir_programs),$(BUILT_INS)); do \
 		$(RM) "$$bindir/$$p" && \
-		if test -z "$(SKIP_DASHED_BUILT_INS)"; \
-		then \
-			test -n "$(INSTALL_SYMLINKS)" && \
-			ln -s "git$X" "$$bindir/$$p" || \
-			{ test -z "$(NO_INSTALL_HARDLINKS)" && \
-			  ln "$$bindir/git$X" "$$bindir/$$p" 2>/dev/null || \
-			  ln -s "git$X" "$$bindir/$$p" 2>/dev/null || \
-			  cp "$$bindir/git$X" "$$bindir/$$p" || exit; }; \
-		fi \
+		test -n "$(INSTALL_SYMLINKS)" && \
+		ln -s "git$X" "$$bindir/$$p" || \
+		{ test -z "$(NO_INSTALL_HARDLINKS)" && \
+		  ln "$$bindir/git$X" "$$bindir/$$p" 2>/dev/null || \
+		  ln -s "git$X" "$$bindir/$$p" 2>/dev/null || \
+		  cp "$$bindir/git$X" "$$bindir/$$p" || exit; }; \
 	done && \
 	for p in $(BUILT_INS); do \
 		$(RM) "$$execdir/$$p" && \