doc: line-range: improve formatting

Improve the formatting of the description of the line-range option '-L'
for `git log`, `gitk` and `git blame`:

- Use bold for <start>, <end> and <funcname>
- Use backticks for literals

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/blame-options.txt

@@ -14,8 +14,8 @@
 	Annotate only the given line range. May be specified multiple times.
 	Overlapping ranges are allowed.
 +
-<start> and <end> are optional. ``-L <start>'' or ``-L <start>,'' spans from
-<start> to end of file. ``-L ,<end>'' spans from start of file to <end>.
+'<start>' and '<end>' are optional. `-L <start>` or `-L <start>,` spans from
+'<start>' to end of file. `-L ,<end>` spans from start of file to '<end>'.
 +
 include::line-range-format.txt[]
 

Documentation/line-range-format.txt

@@ -1,30 +1,30 @@
-<start> and <end> can take one of these forms:
+'<start>' and '<end>' can take one of these forms:
 
 - number
 +
-If <start> or <end> is a number, it specifies an
+If '<start>' or '<end>' is a number, it specifies an
 absolute line number (lines count from 1).
 +
 
-- /regex/
+- `/regex/`
 +
 This form will use the first line matching the given
-POSIX regex. If <start> is a regex, it will search from the end of
+POSIX regex. If '<start>' is a regex, it will search from the end of
 the previous `-L` range, if any, otherwise from the start of file.
-If <start> is ``^/regex/'', it will search from the start of file.
-If <end> is a regex, it will search
-starting at the line given by <start>.
+If '<start>' is `^/regex/`, it will search from the start of file.
+If '<end>' is a regex, it will search
+starting at the line given by '<start>'.
 +
 
 - +offset or -offset
 +
-This is only valid for <end> and will specify a number
-of lines before or after the line given by <start>.
+This is only valid for '<end>' and will specify a number
+of lines before or after the line given by '<start>'.
 
 +
-If ``:<funcname>'' is given in place of <start> and <end>, it is a
+If `:<funcname>` is given in place of '<start>' and '<end>', it is a
 regular expression that denotes the range from the first funcname line
-that matches <funcname>, up to the next funcname line. ``:<funcname>''
+that matches '<funcname>', up to the next funcname line. `:<funcname>`
 searches from the end of the previous `-L` range, if any, otherwise
-from the start of file. ``^:<funcname>'' searches from the start of
+from the start of file. `^:<funcname>` searches from the start of
 file.

Documentation/line-range-options.txt

@@ -1,12 +1,12 @@
 -L<start>,<end>:<file>::
 -L:<funcname>:<file>::
 
-	Trace the evolution of the line range given by "<start>,<end>"
-	(or the function name regex <funcname>) within the <file>.  You may
+	Trace the evolution of the line range given by '<start>,<end>'
+	(or the function name regex '<funcname>') within the '<file>'. You may
 	not give any pathspec limiters.  This is currently limited to
 	a walk starting from a single revision, i.e., you may only
 	give zero or one positive revision arguments, and
-	<start> and <end> (or <funcname>) must exist in the starting revision.
+	'<start>' and '<end>' (or '<funcname>') must exist in the starting revision.
 	You can specify this option more than once. Implies `--patch`.
 	Patch output can be suppressed using `--no-patch`, but other diff formats
 	(namely `--raw`, `--numstat`, `--shortstat`, `--dirstat`, `--summary`,