CLEANUP: Use IST_NULL whenever possible

Refactoring performed with the following Coccinelle patch:

    @@
    @@

    - ist2(NULL, 0)
    + IST_NULL

diff --git a/src/http_fetch.c b/src/http_fetch.c
index c73546b..3d627a9 100644 (file)
--- a/src/http_fetch.c
+++ b/src/http_fetch.c
@@ -818,7 +818,7 @@ static int smp_fetch_fhdr_cnt(const struct arg *args, struct sample *smp, const
        if (args->type == ARGT_STR) {
                name = ist2(args->data.str.area, args->data.str.data);
        } else {
-               name = ist2(NULL, 0);
+               name = IST_NULL;
        }
 
        ctx.blk = NULL;
@@ -954,7 +954,7 @@ static int smp_fetch_hdr_cnt(const struct arg *args, struct sample *smp, const c
        if (args->type == ARGT_STR) {
                name = ist2(args->data.str.area, args->data.str.data);
        } else {
-               name = ist2(NULL, 0);
+               name = IST_NULL;
        }
 
        ctx.blk = NULL;