Newer libintl needs LC_CTYPE to be set in addition to LC_MESSAGES.

diff --git a/misc/findsuper.c b/misc/findsuper.c
index f1e2315..6eac4ee 100644
--- a/misc/findsuper.c
+++ b/misc/findsuper.c
@@ -126,6 +126,7 @@
 
 #ifdef ENABLE_NLS
 	setlocale(LC_MESSAGES, "");
+	setlocale(LC_CTYPE, "");
 	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 	textdomain(NLS_CAT_NAME);
 #endif