BUILD: fix usage of ha_alert without format string
The compilation is failing due to no format string used in ha_alert.
This does not need to be backported.
diff --git a/src/cfgparse-global.c b/src/cfgparse-global.c
index 98012d1..b539a97 100644
--- a/src/cfgparse-global.c
+++ b/src/cfgparse-global.c
@@ -1310,7 +1310,7 @@
continue;
if (strcmp(kwl->kw[index].kw, args[0]) == 0) {
if (check_kw_experimental(&kwl->kw[index], file, linenum, &errmsg)) {
- ha_alert(errmsg);
+ ha_alert("%s\n", errmsg);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}