Bug 1309932 - Allow wpt sync script to work with non-merge PRs, r=Ms2ger

MozReview-Commit-ID: DsrFzoBnfbp

testing/web-platform/mach_commands.py

@@ -99,11 +99,11 @@ class WebPlatformTestsUpdater(MozbuildObject):
 
         try:
             update.run_update(logger, **kwargs)
-        except:
+        except Exception:
             import pdb
             import traceback
             traceback.print_exc()
-            pdb.post_mortem()
+#            pdb.post_mortem()
 
 class WebPlatformTestsReduce(WebPlatformTestsRunner):