Add sys return values

Author: spectranaut

tools/wpt/run.py

@@ -65,7 +65,7 @@ def create_parser():
 def exit(msg=None):
     if msg:
         logger.critical(msg)
-        sys.exit(1)
+        sys.exit(100)
     else:
         sys.exit(0)
 

tools/wpt/wpt.py

@@ -232,7 +232,7 @@ def main(prog=None, argv=None):
         try:
             rv = script(*args, **kwargs)
             if rv is not None:
-                sys.exit(int(rv))
+                sys.exit(int(rv) + 10)
         except Exception:
             if main_args.debug:
                 import pdb

tools/wptrunner/wptrunner/environment.py

@@ -44,7 +44,7 @@ def do_delayed_imports(logger, test_paths):
         logger.critical(
             "Failed to import %s. Ensure that tests path %s contains web-platform-tests" %
             (", ".join(failed), serve_root))
-        sys.exit(1)
+        sys.exit(1000)
 
 
 def serve_path(test_paths):