Fix a runtime error I saw

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62448 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/ccc/ccclib/Jobs.py b/tools/ccc/ccclib/Jobs.py
index 48d97db..0b3c3a3 100644
--- a/tools/ccc/ccclib/Jobs.py
+++ b/tools/ccc/ccclib/Jobs.py
@@ -33,7 +33,7 @@
     """PipedJob - A sequence of piped commands."""
 
     def __init__(self, commands):
-        assert all_true(args, lambda x: isinstance(x, Arguments.Command))
+        assert Util.all_true(commands, lambda x: isinstance(x, Arguments.Command))
         self.commands = list(commands)
 
     def addJob(self, job):