core : add word to log get_boundary function

added  word to log for more understanding

src/core/msg_translator.c

@@ -1713,7 +1713,7 @@ int get_boundary(struct sip_msg* msg, str* boundary)
 		msg->content_type->body.len);
 	if (params.s == NULL)
 	{
-		LM_INFO("Content-Type hdr has no params <%.*s>\n",
+		LM_INFO("Content-Type hdr has no boundary params <%.*s>\n",
 				msg->content_type->body.len, msg->content_type->body.s);
 		return -1;
 	}