fetch: lowercase abort message

hgext/fetch.py

@@ -75,7 +75,7 b" def fetch(ui, repo, source='default', **"
             try:
                 revs = [other.lookup(rev) for rev in opts['rev']]
             except error.CapabilityError:
-                err = _("Other repository doesn't support revision lookup, "
+                err = _("other repository doesn't support revision lookup, "
                         "so a rev cannot be specified.")
                 raise util.Abort(err)