patch 8.2.1670: a couple of gcc compiler warnings

Problem:    A couple of gcc compiler warnings.
Solution:   Initialize local variables. (Dominique Pellé, closes #6944)
diff --git a/src/version.c b/src/version.c
index 4f8b503..b819c6d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1670,
+/**/
     1669,
 /**/
     1668,