Typoe in the code

Author: efajardo

osgtest/tests/test_60_singularity.py

@@ -18,7 +18,7 @@ def mountSingularityCVMFSRepo(self, repo):
         command = ('mount', '-t', 'cvmfs', 'repo', '/cvmfs/' + repo)
         status, stdout, stderr = core.system(command, False)
         if status != 0:
-            self.fail("failed to mount" % repo)
+            self.fail("failed to mount: %s, error: %s" % (repo,stderr))
 
 
     def test_01_singularity(self):