phase: use standard syntax for command line flags
We don't mark them as literal text and we mention the short option the
first time we talk about a given flag.
--- a/mercurial/commands.py Fri Jan 13 11:26:24 2012 +0100
+++ b/mercurial/commands.py Fri Jan 13 11:29:47 2012 +0100
@@ -4228,7 +4228,7 @@
With no argument, show the phase name of specified revisions.
- With one of ``--public``, ``--draft`` or ``--secret``, change the
+ With one of -p/--public, -d/--draft or -s/--secret, change the
phase value of the specified revisions.
Unless -f/--force is specified, :hg:`phase` won't move changeset from a