Bug 823787 - Make profilerserver.py use a non-zero exit code on failure. r=ted.

--HG--
extra : rebase_source : 2e7d1ec773dfc286c57832ea3d907f0b18af8908

build/pgo/profileserver.py

@@ -65,7 +65,15 @@ if __name__ == '__main__':
                            cmdargs=cmdargs,
                            env=env)
     runner.start(debug_args=debug_args, interactive=interactive)
-    runner.wait()
+    status = runner.wait()
     httpd.stop()
+    if status != 0:
+        status = 1      # normalize status, in case it's larger than 127
+
+    # Note:  the |finally| block below will always run.
+    # http://docs.python.org/2/library/sys.html#sys.exit says that sys.exit "is
+    # implemented by raising the SystemExit exception, so cleanup actions
+    # specified by finally clauses of try statements are honored".
+    sys.exit(status)
   finally:
     shutil.rmtree(profilePath)