[master] 1e09e63ff Silence FlexeLint

[Poul-Henning Kamp]

commit 1e09e63ff0fe97ed9faff596c87d0809d6f00a34
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Mon Nov 14 17:25:15 2022 +0000

    Silence FlexeLint

diff --git a/bin/varnishd/cache/cache_http.c b/bin/varnishd/cache/cache_http.c
index fe6fcb03d..75e66ce6d 100644
--- a/bin/varnishd/cache/cache_http.c
+++ b/bin/varnishd/cache/cache_http.c
@@ -192,8 +192,8 @@ http_hdr_flags(const char *b, const char *e)
 	assert(b + u == e);
 	if (u < GPERF_MIN_WORD_LENGTH || u > GPERF_MAX_WORD_LENGTH)
 		return (NULL);
-	u += http_asso_values[((const uint8_t *)b)[u - 1]] +
-	    http_asso_values[((const uint8_t *)b)[0]];
+	u += http_asso_values[(uint8_t)(e[-1])] +
+	     http_asso_values[(uint8_t)(b[0])];
 	if (u > GPERF_MAX_HASH_VALUE)
 		return (NULL);
 	retval = &http_hdrflg[u];