[PATCH] su: dynamically looks for username holding uid 0

[Lucas C. Villa Real]

Hi there,

This patch has been written in order to allow 'su' to dynamically look
for the username which has uid=0, instead of assuming it's named
'root' when no username is specified in the cmdline. The default name
is still used if getpwuid(0) fails, so there's no modification on this
program's behaviour.

Thanks,

--
Lucas
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02-dynamic_super-user.patch
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