Rollup merge of #108477 - y21:replace-semi-with-comma-sugg, r=compiler-errors

Make `match` arm comma suggestion more clear

Fixes #108472

Author: matthiaskrgr

compiler/rustc_parse/locales/en-US.ftl

@@ -220,7 +220,7 @@ parse_match_arm_body_without_braces = `match` arm body without braces
             [one] statement
            *[other] statements
         } with a body
-    .suggestion_use_comma_not_semicolon = use a comma to end a `match` arm expression
+    .suggestion_use_comma_not_semicolon = replace `;` with `,` to end a `match` arm expression
 
 parse_inclusive_range_extra_equals = unexpected `=` after inclusive range
     .suggestion_remove_eq = use `..=` instead

tests/ui/parser/match-arm-without-braces.stderr

@@ -2,10 +2,14 @@ error: `match` arm body without braces
   --> $DIR/match-arm-without-braces.rs:26:27
    |
 LL |         Some(Val::Foo) => 3;
-   |                        -- ^- help: use a comma to end a `match` arm expression: `,`
-   |                        |  |
-   |                        |  this statement is not surrounded by a body
+   |                        -- ^ this statement is not surrounded by a body
+   |                        |
    |                        while parsing the `match` arm starting here
+   |
+help: replace `;` with `,` to end a `match` arm expression
+   |
+LL |         Some(Val::Foo) => 3,
+   |                            ~
 
 error: `match` arm body without braces
   --> $DIR/match-arm-without-braces.rs:31:11