BUG/MINOR: acl: Fix type of log message when an acl is named 'or'

The patch adding this check initially only issued a warning, instead of
being fatal. It was changed before committing. However when making this
change the type of the log message was not changed from `ha_warning` to
`ha-alert`. This patch makes this forgotten adjustment.

see 0cf811a5f941261176b67046dbc542d0479ff4a7
No backport needed. The initial patch was backported as a warning, thus
the log message type is correct.
diff --git a/src/flt_spoe.c b/src/flt_spoe.c
index 06c70d2..4e448dd 100644
--- a/src/flt_spoe.c
+++ b/src/flt_spoe.c
@@ -3992,7 +3992,7 @@
 			goto out;
 		}
 		if (strcasecmp(args[1], "or") == 0) {
-			ha_warning("parsing [%s:%d] : acl name '%s' will never match. 'or' is used to express a "
+			ha_alert("parsing [%s:%d] : acl name '%s' will never match. 'or' is used to express a "
 				   "logical disjunction within a condition.\n",
 				   file, linenum, args[1]);
 			err_code |= ERR_ALERT | ERR_FATAL;