message: Use != instead of not ==
diff: @@ -1523,7 +1523,7 @@ def main():
  set_grpc_build_flags()
  set_cc_opt_flags(environ_cp)
  - if not environ_cp.get("BAZEL_STRIP") == "0":
  + if environ_cp.get("BAZEL_STRIP") != "0":
  set_build_strip_flag()
  set_windows_build_flags()
  