patch 9.0.0393: signals test often fails on FreeBSD

Problem:    Signals test often fails on FreeBSD.
Solution:   Use separate files for Suspend and Resume. (Ken Takata,
            closes #11065)

src/version.c

@@ -703,6 +703,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    393,
 /**/
     392,
 /**/