Hi,

This is a fix for the scenario of a krb5 user running a "sudo mount".
Even if the user has cred cache populated, when the mount is run using
sudo, uid switches to 0. So cred cache for the root user will be
searched for, unless cruid is specified explicitly. This fix checks
for cruid=$SUDO_UID as a fallback option, when the mount fails with
ENOKEY.

--
-Shyam