document why POSIXLY_CORRECT must be unset
From-SVN: r67977
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@ -33,7 +33,8 @@ SORT=sort # Could be /bin/sort or /usr/bin/sort
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C_FILE=$1; shift
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H_FILE=$1; shift
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# Must unset this, so that the gawk extension RS="" works.
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# Must unset, so that RS="" works in gawk 3.0-3.1.1 (possibly earlier too)
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# Appears to be a gawk bug, RS="" is not an extension
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unset POSIXLY_CORRECT
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${AWK} '
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