Fix an harmless warning spoted by gcc 10 and -Werror=discarded-qualifiers
@@ -1875,8 +1875,8 @@ AP_DECLARE(void) ap_close_piped_log(piped_log *pl)
AP_DECLARE(const char *) ap_parse_log_level(const char *str, int *val)
{
- char *err = "Log level keyword must be one of emerg/alert/crit/error/warn/"
- "notice/info/debug/trace1/.../trace8";
+ const char *err = "Log level keyword must be one of emerg/alert/crit/error/"
+ "warn/notice/info/debug/trace1/.../trace8";
int i = 0;
if (str == NULL)
