patch 9.0.1018: suspend test still fails on Mac OS

Problem:    Suspend test still fails on Mac OS.
Solution:   Make 'keyprotocol' empty.
diff --git a/src/version.c b/src/version.c
index 4ba888e..eb34e00 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1018,
+/**/
     1017,
 /**/
     1016,