nfscl: Fix comment for commit 6aded1e6b2e5

Commit 6aded1e6b2e5 fixed a rare case when handling an NFSv4
Rename reply when delegations are in use.  This patch fixes the
associated comment.

(cherry picked from commit 0a958aa16fed1978879d64e3b225f1d232cc5a98)

sys/fs/nfsclient/nfs_clrpcops.c

@@ -2554,7 +2554,7 @@ nfsrpc_rename(vnode_t fdvp, vnode_t fvp, char *fnameptr, int fnamelen,
 				     * If the Delegreturn failed, try again
 				     * without it. The server will Recall, as
 				     * required.
-				     * If ret > 1, the first iteration of this
+				     * If ret > 1, the second iteration of this
 				     * loop is the second DelegReturn result.
 				     */
 				    mbuf_freem(nd->nd_mrep);