[patch] use POSIX awk expression rather than GNU extension

[Mike Frysinger]

On Wednesday 26 December 2007, Ulrich Drepper wrote:
> Mike Frysinger wrote:
> > attached patch makes this change.
>
> Why should this be necessary?  Everything works as is.  Such a patch
> could lead only lead to problems.  Don't ever send unnecessary patches.

there is no requirement that `awk` be GNU awk.  that is `gawk`.  if the system 
building glibc has `awk` which is not GNU awk, you hit a build failure.  if 
everything "works as is", i wouldnt be sending a fix now would i ?
-mike
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