# HG changeset patch
# User Martin Geisler <mg@lazybytes.net>
# Date 1285967771 -7200
# Node ID f365aed7cc5b4ce5f42d1e2d20001e2dc7951c5b
# Parent  03c5737a06a1c4493c7c0d612ce431bf0950525c
heads: mention STARTREV in synopsis and help for --rev

Before this change, "hg help heads" said

  hg heads [-ac] [-r REV] [REV]...

      [...]
      If STARTREV is specified, only those heads that are descendants
      of STARTREV will be displayed.
      [...]

   -r --rev REV       show only heads which are descendants of REV
   [...]

which made little sense since there are two things called REV in the
synopsis and nothing called STARTREV.

A little digging reveals that the "[-r REV]" part of the synopsis was
introduced in 8e503fa54d2d, changed to "[-r STARTREV]" in
2bcef677a6c3, and then changed back to "[-r REV]" in 4b02fc71bbba.

The last change seems to be based on a patch[1] on our mailinglist
that actually *inserted* STARTREV again in the help for the command
line option itself. For some reason, the patch was changed to remove
STARTREV from the synopsis.

This change finally makes the help consistent by putting STARTREV back
into the help in all places where it is needed:

  hg heads [-ac] [-r STARTREV] [REV]...

      [...]
      If STARTREV is specified, only those heads that are descendants
      of STARTREV will be displayed.
      [...]

   -r --rev STARTREV  show only heads which are descendants of STARTREV
   [...]

This was not possible until 40c06bbf58be, which introduced the
possibility of naming the meta variables for each option.

[1]: http://mercurial.markmail.org/message/qgc55gd4fam4ogvz

diff -r 03c5737a06a1 -r f365aed7cc5b mercurial/commands.py
--- a/mercurial/commands.py	Fri Oct 01 10:29:33 2010 -0500
+++ b/mercurial/commands.py	Fri Oct 01 23:16:11 2010 +0200
@@ -4155,14 +4155,15 @@
     "heads":
         (heads,
          [('r', 'rev', '',
-           _('show only heads which are descendants of REV'), _('REV')),
+           _('show only heads which are descendants of STARTREV'),
+           _('STARTREV')),
           ('t', 'topo', False, _('show topological heads only')),
           ('a', 'active', False,
            _('show active branchheads only (DEPRECATED)')),
           ('c', 'closed', False,
            _('show normal and closed branch heads')),
          ] + templateopts,
-         _('[-ac] [-r REV] [REV]...')),
+         _('[-ac] [-r STARTREV] [REV]...')),
     "help": (help_, [], _('[TOPIC]')),
     "identify|id":
         (identify,