[PATCH] Don't fail to create passwd and group files if /etc already exists

[Nick Withers]

Hi all,

Commit 3211e8e9c0565fae8b13ba0115e3a23ad3ae8ade added error checking to
a mkdir("/etc", ...) call in pwdgrp_init().

That call might fail if the directory already exists. In my case,
because I'm tarfs-ing stuff into /etc before invoking the NFS client,
which calls pwdgrp_init().

The attached patch allows the mkdir() call to fail with EEXIST.

Cheers!
-- 
Nick Withers

Embedded Systems Programmer
Department of Nuclear Physics, Research School of Physics and Engineering
The Australian National University (CRICOS: 00120C)
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