[krbdev.mit.edu #6987] SVN Commit

[Greg Hudson via RT]

krb5_cc_set_config has been non-functional since r24753 on cache types
which don't support removal of credential entries.  Fix it by only
calling krb5_cc_remove_cred if data is NULL, since krb5_cc_store_cred
will do it anyway in the positive case.

Also fix an old memory leak in an uncommon error case.

http://src.mit.edu/fisheye/changelog/krb5/?cs=25384
Commit By: ghudson
Revision: 25384
Changed Files:
U   trunk/src/lib/krb5/ccache/ccfns.c