Fix test for fcntl return value.
authorBen Pfaff <blp@nicira.com>
Thu, 28 Aug 2008 20:15:32 +0000 (13:15 -0700)
committerBen Pfaff <blp@nicira.com>
Thu, 28 Aug 2008 20:15:32 +0000 (13:15 -0700)
POSIX only says that -1 is an error; other return values have unspecified
meanings.


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