patch 9.0.0161: warning for uninitialized variable

Problem:    Warning for uninitialized variable. (Tony Mechelynck)
Solution:   Initialize line_attr_save.
diff --git a/src/version.c b/src/version.c
index a4cafbd..31d8404 100644
--- a/src/version.c
+++ b/src/version.c
@@ -736,6 +736,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    161,
+/**/
     160,
 /**/
     159,