patch 8.1.0650: command line argument -q [errorfile] is not tested

Problem:    Command line argument -q [errorfile] is not tested.
Solution:   Add a test. (Dominique Pelle, closes #3730)
diff --git a/src/version.c b/src/version.c
index 870ea89..cbb0e70 100644
--- a/src/version.c
+++ b/src/version.c
@@ -800,6 +800,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    650,
+/**/
     649,
 /**/
     648,