Reduce verbosity for rig_strvfop

src/misc.c

@@ -946,7 +946,8 @@ const char *HAMLIB_API rig_strvfop(vfo_op_t op)
 {
     int i;
 
-    rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
+// too verbose
+//    rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
 
     for (i = 0; vfo_op_str[i].str[0] != '\0'; i++)
     {