[RFC] utils: os_unix: use access() for checking file existence

[Jouni Malinen]

On Wed, Jul 27, 2016 at 10:17:53PM +0530, Rahul Bedarkar wrote:
> Trying to open file for checking file existence seems to be too much.
> Instead use access system call which is meant for the same.

Thanks, applied.
 
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Jouni Malinen                                            PGP id EFC895FA