getopt-gnu: Fix exit code overflow in autoconf test.
authorBruno Haible <bruno@clisp.org>
Tue, 19 Jun 2012 10:11:04 +0000 (12:11 +0200)
committerBruno Haible <bruno@clisp.org>
Tue, 19 Jun 2012 10:11:04 +0000 (12:11 +0200)
* m4/getopt.m4 (gl_GETOPT_CHECK_HEADERS): Squash exit code values,
to keep them below < 128.


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