patch 8.1.0007: no test for "o" and "O" in Visual block mode

Problem:    No test for "o" and "O" in Visual block mode.
Solution:   Add a test. (Dominique Pelle, closes #2932)
diff --git a/src/version.c b/src/version.c
index 4093a8c..f18e711 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    7,
+/**/
     6,
 /**/
     5,