fix length parameter in SSL_set_tlsext_opaque_prf_input() calls
diff --git a/apps/s_server.c b/apps/s_server.c
index 0cfdf6a..3b99a62 100644
--- a/apps/s_server.c
+++ b/apps/s_server.c
@@ -1577,7 +1577,7 @@
 	SSL_clear(con);
 #if 0
 #ifdef TLSEXT_TYPE_opaque_prf_input
-	SSL_set_tlsext_opaque_prf_input(con, "Test server", 1);
+	SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
 #endif
 #endif