[PATCH] remove nested function hack_digit

[Konstantin Serebryany]

Please review the patch which removes a nested function hack_digit and
replaces it
with a non-nested static function. No functionality change intended.

un-nesting glibc function was previously discussed here:
https://sourceware.org/ml/libc-alpha/2014-05/msg00400.html

Thanks!

--kcc

2014-09-15  Kostya Serebryany  <konstantin.s.serebryany@gmail.com>

        * stdio-common/printf_fp.c (hack_digit): New function.
        (___printf_fp): Remove nested function hack_digit. Call non-nested
        function hack_digit.
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