Function GetLastErrnoDescription

tests/gtest/gtest-all.cc:7935–7937

Returns the message describing the last system error in errno.

// Returns the message describing the last system error in errno.
std::string GetLastErrnoDescription() {
    return errno == 0 ? "" : posix::StrError(errno);
}

// This is called from a death test parent process to read a failure
// message from the death test child process and log it with the FATAL