small fix for crosstool with glibc-2.7

[Dimitry Andric]

Christian Kujau wrote:
> awk: scripts/gen-sorted.awk: line 19: syntax error at or near ]
> awk: scripts/gen-sorted.awk: line 19: runaway regular expression /, "",
...

> On my system only mawk (from debian/unstable, version 1.3.3-11)  was
> installed (I could see in the buildlogs, that "mawk" was called, not
> "awk", which was symlinked to "mawk" at this time). Installing "gawk"
> (also debian/unstable, version 3.1.5.dfsg-4) made the command succeed.

This should really be sent upstream, e.g. to the glibc maintainers.
They'll possibly say "we only support GNU awk", but if it's such a
simple patch they might accept it.


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