From c00d39d855449009fbb8cf40c1a95e1cdd2b5b3d Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Wed, 17 Apr 2013 18:59:32 -0700
Subject: [PATCH] Fix cli matchers to only include actual matcher objects

---
 lib/mutant/cli.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/mutant/cli.rb b/lib/mutant/cli.rb
index 4cd89880..2f27cfe2 100644
--- a/lib/mutant/cli.rb
+++ b/lib/mutant/cli.rb
@@ -157,7 +157,8 @@ module Mutant
     def dispatch_matcher
       argument = current_argument
       consume(1)
-      @matchers << Classifier.build(argument)
+      matcher = Classifier.build(argument)
+      @matchers << matcher if matcher
     end
 
     # Process option argument