[patch] use POSIX awk expression rather than GNU extension

[Ulrich Drepper]

Mike Frysinger wrote:
> there is no requirement that `awk` be GNU awk.

Says who?  We always and everywhere take advantage of all the GNU tools
and extensions.  This has always been the case for all the tools.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖