(gss_krb5_import_cred): make sure cred is GSS_C_NO_CREDENTIAL on failure.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@17733 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/gssapi/mech/gss_krb5.c

@@ -105,6 +105,8 @@ gss_krb5_import_cred(OM_uint32 *minor_status,
     krb5_data data;
     char *str;
 
+    *cred = GSS_C_NO_CREDENTIAL;
+
     ret = krb5_init_context(&context);
     if (ret) {
 	*minor_status = ret;