patch 9.0.0705: virtual text truncation does not take padding into account

Problem:    Virtual text truncation does not take padding into account.
Solution:   Subtract the padding from the available space. (closes #11318)
diff --git a/src/version.c b/src/version.c
index 67bc7ff..84d8e2b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    705,
+/**/
     704,
 /**/
     703,