--- a/hgext/evolve.py	Sat Aug 04 12:06:34 2012 +0200
+++ b/hgext/evolve.py	Sat Aug 04 12:28:21 2012 +0200
@@ -658,12 +658,12 @@
     try:
         obsolete = extensions.find('obsolete')
     except KeyError:
-        raise error.Abort(_('evolution extension require obsolete extension.'))
+        raise error.Abort(_('evolution extension requires obsolete extension.'))
     try:
         rebase = extensions.find('rebase')
     except KeyError:
         rebase = None
-        raise error.Abort(_('evolution extension require rebase extension.'))
+        raise error.Abort(_('evolution extension requires rebase extension.'))
 
     for cmd in ['amend', 'kill', 'uncommit']:
         entry = extensions.wrapcommand(cmdtable, cmd,