patch 8.2.1993: occasional failure of the netbeans test

Problem:    Occasional failure of the netbeans test.
Solution:   Add "silent!". (Yegappan Lakshmanan, closes #7304)
diff --git a/src/version.c b/src/version.c
index 0d9cf70..3ab3ab4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1993,
+/**/
     1992,
 /**/
     1991,