config: update __isarg before reading config param

diff --git a/src/config.h b/src/config.h
index d41f33b7d8b74f8ba7e97039fb74df856e9fa469..43b363a17a23344a1942eb4eb13902a13abc7bc2 100644 (file)
--- a/src/config.h
+++ b/src/config.h
@@ -454,6 +454,7 @@ ExportControl *conf_get_export_control();
 
 #define CONF_SAFE_SET_ARG_VAL(dest, type) \
        do { \
+          __isarg = i+1 < args.size(); \
           if (type == OPT_BOOL) { \
                if (val_pos) { \
                        CONF_SET_ARG_VAL(dest, type); \