smpp: Fix small typo in the comment
diff --git a/openbsc/src/libmsc/smpp_openbsc.c b/openbsc/src/libmsc/smpp_openbsc.c
index ec541c2..7e14c74 100644
--- a/openbsc/src/libmsc/smpp_openbsc.c
+++ b/openbsc/src/libmsc/smpp_openbsc.c
@@ -107,7 +107,7 @@
 	t = find_tlv(submit->tlv, TLVID_message_payload);
 	if (t) {
 		if (submit->sm_length) {
-			/* ERROR: we cannot have botH! */
+			/* ERROR: we cannot have both! */
 			LOGP(DLSMS, LOGL_ERROR, "SMPP Cannot have payload in "
 				"TLV _and_ in the header\n");
 			return ESME_ROPTPARNOTALLWD;