Documented the strings script.

1 files changed, 2 insertions, 1 deletions

diff --git a/validate.c b/validate.c
index ebc99fea..ef0121bf 100644
--- a/validate.c
+++ b/validate.c
@@ -484,7 +484,8 @@ check_sec(PRE_ARGS, ...)
 	va_start(ap, n);
 
 	for (;;) {
-		if (SEC_CUSTOM == (sec = va_arg(ap, enum mdoc_sed)))
+		sec = (enum mdoc_sec)va_arg(ap, int);
+		if (SEC_CUSTOM == sec)
 			break;
 		if (sec != mdoc->lastsec)
 			continue;