curl: make -N handled correctly

Options marked ARG_NO should have their 'toggle' value reverted when the
short option is used as it implies using the --no- prefix.

-N happens be the only short option flag for a --no- long option.

Reported-by: Stefan Eissing
Closes #17527

diff --git a/src/tool_getparam.c b/src/tool_getparam.c
index f09a594c05f6f5177a6fd0f02084bc75f28b5b9e..51156e46b97e19b3f97c116c362740a36660ebeb 100644 (file)
--- a/src/tool_getparam.c
+++ b/src/tool_getparam.c
@@ -2881,6 +2881,7 @@ ParameterError getparameter(const char *flag, /* f or -long-flag */
         err = PARAM_OPTION_UNKNOWN;
         break;
       }
+      toggle = !(a->desc & ARG_NO);
     }
     if((a->desc & ARG_TLS) && !feature_ssl) {
       err = PARAM_LIBCURL_DOESNT_SUPPORT;