2933 compiler warning gags need better granularity
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>

5004023 *nawk* nawk fails when called from buildpatch with long path names
5040318 nawk is limited to 500 fields.
5090114 nawk core dumps
6268954 cmd/awk and gcc don't get along

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