color: simplify & improve colorization of qseries

Use 'repo.mq.series' to obtain patch names, instead of deriving them
from the qseries output. This is both simpler and more robust, and
fixes colorization of patches without a message with -s/--summary.

hgext/color.py

@@ -59,6 +59,7 b' Default effects may be overridden from t'
 '''
 
 import os, sys
+import itertools
 
 from mercurial import cmdutil, commands, extensions, error
 from mercurial.i18n import _
@@ -142,14 +143,10 b' def colorqseries(orig, ui, repo, *dummy,'
     '''run the qseries command with colored output'''
     ui.pushbuffer()
     retval = orig(ui, repo, **opts)
-    patches = ui.popbuffer().splitlines()
-    for patch in patches:
-        patchname = patch
-        if opts['summary']:
-            patchname = patchname.split(': ', 1)[0]
-        if ui.verbose:
-            patchname = patchname.lstrip().split(' ', 2)[-1]
+    patchlines = ui.popbuffer().splitlines()
+    patchnames = repo.mq.series
 
+    for patch, patchname in itertools.izip(patchlines, patchnames):
         if opts['missing']:
             effects = _patch_effects['missing']
         # Determine if patch is applied.