patch 9.0.0642: breakindent test fails

Problem:    Breakindent test fails.
Solution:   Correct logic for resetting need_showbreak.
diff --git a/src/version.c b/src/version.c
index 09f4757..786a866 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    642,
+/**/
     641,
 /**/
     640,