Replicate the exception handling fix from #2283 (#2287)

Avoid any copy pasta fails if someone cribs from one of these for a
future script and replicate the exception handling fix from #2283 to all
the scripts.

Author: andrewpollock

tools/datafix/delete_bugs_with_source.py

@@ -72,6 +72,8 @@ def main() -> None:
       # subsequent batches from being attempted.
       if args.dryrun and e.args[0].startswith("Dry run mode"):
         pass
+      else:
+        raise
   if len(result) > 0 and not args.dryrun:
     print("Deleted!")
 

tools/datafix/delete_invalid.py

@@ -87,6 +87,8 @@ def main() -> None:
       # subsequent batches from being attempted.
       if args.dryrun and e.args[0].startswith("Dry run mode"):
         pass
+      else:
+        raise
   if len(result_to_delete) > 0 and not args.dryrun:
     print("Deleted!")
 

tools/datafix/withdraw_invalid.py

@@ -64,6 +64,8 @@ def main() -> None:
       # subsequent batches from being attempted.
       if args.dryrun and e.args[0].startswith("Dry run mode"):
         pass
+      else:
+        raise
   if len(result_to_fix) > 0 and not args.dryrun:
     print("Fixed!")