Be more verbose when something fails.

commonRegression.py

@@ -28,7 +28,7 @@ def test(binaries, expected, timeout):
                     sys.stdout.write("\b\b\b\b\b\b\b%3d/%3d" % (cnt+1,total))
                     sys.stdout.flush()
             print "\nVerified ", binary, ": OK"
-    except:
-        print("Test failed...")
+    except Exception, e:
+        print("Test failed...", str(e))
         return 1
     return 0