am 2aceb4bc: am e2a17ef4: am 77ac158e: Merge "Don\'t copy strerror(3) or strsignal(3) strings if we can share."

* commit '2aceb4bcb30def2207fd8d6e7d30df35f9f91504':
  Don't copy strerror(3) or strsignal(3) strings if we can share.