--- a/mercurial/revsetlang.py	Sat Apr 01 17:04:49 2017 +0900
+++ b/mercurial/revsetlang.py	Sat Apr 01 17:12:48 2017 +0900
@@ -641,7 +641,8 @@
             d = expr[pos]
             ret.append(listexp(list(next(argiter)), d))
         else:
-            raise error.Abort(_('unexpected revspec format character %s') % d)
+            raise error.ParseError(_('unexpected revspec format character %s')
+                                   % d)
         pos += 1
 
     return ''.join(ret)