manpages: italicize command names in synopses

To tell command names from options in a glance.

Signed-off-by: Jonathan Nieder <jrnieder@uchicago.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-reflog.txt

@@ -16,12 +16,12 @@ The command takes various subcommands, and different options
 depending on the subcommand:
 
 [verse]
-git reflog expire [--dry-run] [--stale-fix] [--verbose]
+'git reflog expire' [--dry-run] [--stale-fix] [--verbose]
 	[--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>...
-
-git reflog delete ref@\{specifier\}...
-
-git reflog [show] [log-options] [<ref>]
++
+'git reflog delete' ref@\{specifier\}...
++
+'git reflog' ['show'] [log-options] [<ref>]
 
 Reflog is a mechanism to record when the tip of branches are
 updated.  This command is to manage the information recorded in it.

Documentation/git-remote.txt

@@ -10,11 +10,11 @@ SYNOPSIS
 --------
 [verse]
 'git remote' [-v | --verbose]
-'git remote' add [-t <branch>] [-m <master>] [-f] [--mirror] <name> <url>
-'git remote' rm <name>
-'git remote' show [-n] <name>
-'git remote' prune [-n | --dry-run] <name>
-'git remote' update [group]
+'git remote add' [-t <branch>] [-m <master>] [-f] [--mirror] <name> <url>
+'git remote rm' <name>
+'git remote show' [-n] <name>
+'git remote prune' [-n | --dry-run] <name>
+'git remote update' [group]
 
 DESCRIPTION
 -----------