Merge branch 'ad/doc-markup-fix' into maint

Docfix.

* ad/doc-markup-fix:
  doc: correct command formatting

Author: gitster

Documentation/git.txt

@@ -75,7 +75,7 @@ example the following invocations are equivalent:
 Note that omitting the `=` in `git -c foo.bar ...` is allowed and sets
 `foo.bar` to the boolean true value (just like `[foo]bar` would in a
 config file). Including the equals but with an empty value (like `git -c
-foo.bar= ...`) sets `foo.bar` to the empty string which ` git config
+foo.bar= ...`) sets `foo.bar` to the empty string which `git config
 --bool` will convert to `false`.
 
 --exec-path[=<path>]::