Ben Langmuir 9be5d1ece8 Update r228592 for when gethostname() returns an error ...

If gethostname() is not successful, just skip adding the hostname to the
module hash.  And don't bother setting hostname[255] = 0, since if
gethostname() is successful, it will be null-terminated already (and if
it's not successful we don't read the string now.

llvm-svn: 228601

2015-02-09 20:13:11 +00:00

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