--- a/mercurial/commands.py	Fri May 06 19:03:45 2011 +0300
+++ b/mercurial/commands.py	Fri May 06 15:48:04 2011 -0300
@@ -609,6 +609,7 @@
         if not opts.get('force') and label in repo.branchtags():
             if label not in [p.branch() for p in repo.parents()]:
                 raise util.Abort(_('a branch of the same name already exists'),
+                                 # i18n: "it" refers to an existing branch
                                  hint=_("use 'hg update' to switch to it"))
         repo.dirstate.setbranch(label)
         ui.status(_('marked working directory as branch %s\n') % label)