http: const up readonly H2_NON_FIELD

Closes #17996

diff --git a/lib/http.c b/lib/http.c
index e5a0696274fcbbd6900aa9593d3083806189ad70..9a844301fba86ad9a7e82fe8d1efa842446a1958 100644 (file)
--- a/lib/http.c
+++ b/lib/http.c
@@ -4569,7 +4569,7 @@ struct name_const {
 };
 
 /* keep them sorted by length! */
-static struct name_const H2_NON_FIELD[] = {
+static const struct name_const H2_NON_FIELD[] = {
   { STRCONST("Host") },
   { STRCONST("Upgrade") },
   { STRCONST("Connection") },