Add missing prototype for check_length().

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@21901 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/kadm5/sample_passwd_check.c

@@ -36,6 +36,8 @@
 #include <stdlib.h>
 #include <krb5.h>
 
+const char* check_length(krb5_context, krb5_principal, krb5_data *);
+
 /* specify the api-version this library conforms to */
 
 int version = 0;