[krbdev.mit.edu #3190] List principals lists wrong principals if principal name contains back slash
When we were trying out principal names with special characters, we
found out that listprincs option of kadmin.local looks for the wrong
principals if the principal name contains a back slash. It looks for ']'
character instead of '\'.
(e.g.) if the principal name is a\/b@REALM, then
kadmin.local: listprincs a\\/b@REALM
looks for the principal a]]/b@REALM.