(krb5_get_in_tkt): for compatibility with with the mit implemtation,

don't free `creds' argument when done, its up the the caller to do
that, also allow a NULL ccache.


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@12561 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/krb5/get_in_tkt.c

@@ -820,7 +820,7 @@ krb5_get_in_tkt(krb5_context context,
 			    ret_as_reply);
     if(ret) 
 	return ret;
+    if (ccache)
 	ret = krb5_cc_store_cred (context, ccache, creds);
-    krb5_free_creds_contents (context, creds);
     return ret;
 }