message: fix failing C test
diff: @@ -46,7 +46,7 @@ void test_should_get_last_error_after_bad_request(void) {
  unsigned char error[255] = {0};
  int bytes_read = casper_get_last_error(error, 255);
  - TEST_ASSERT_EQUAL_STRING("failed to get rpc response: builder error: relative URL without a base",
  + TEST_ASSERT_EQUAL_STRING("Failed to get RPC response: builder error: relative URL without a base",
  error);
  }
  