help: make "mergetool" an alias for "merge-tools"
I've probably typed `hg help mergetool` dozens of times. I'm tired
of it not working.
--- a/mercurial/help.py Thu Jan 12 21:06:55 2017 +0900
+++ b/mercurial/help.py Fri Jan 13 21:21:02 2017 -0800
@@ -214,7 +214,8 @@
_('Specifying Revisions'), loaddoc('revisions')),
(['filesets', 'fileset'], _("Specifying File Sets"), loaddoc('filesets')),
(['diffs'], _('Diff Formats'), loaddoc('diffs')),
- (['merge-tools', 'mergetools'], _('Merge Tools'), loaddoc('merge-tools')),
+ (['merge-tools', 'mergetools', 'mergetool'], _('Merge Tools'),
+ loaddoc('merge-tools')),
(['templating', 'templates', 'template', 'style'], _('Template Usage'),
loaddoc('templates')),
(['urls'], _('URL Paths'), loaddoc('urls')),