[gold patch] Fix check for fallocate failure

[Ian Lance Taylor]

Cary Coutant <ccoutant@google.com> writes:

> 2011-10-12  Cary Coutant  <ccoutant@google.com>
>
> 	* output.cc (posix_fallocate): Return 0 on success, errno on failure.
> 	(Output_file::map_no_anonymous): Check for non-zero
> 	return code from posix_fallocate.

This is OK.

Thanks.

Ian