patch 9.0.0869: bogus error when string used after :elseif

Problem:    Bogus error when string used after :elseif.
Solution:   Do not consider a double quote the start of a comment.
            (closes #11534)
diff --git a/src/version.c b/src/version.c
index b16f860..10aa6de 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    869,
+/**/
     868,
 /**/
     867,