patch 8.2.5005: compiler warning for uninitialized variable

Problem:    Compiler warning for uninitialized variable. (John Marriott)
Solution:   Initialize the pointer to NULL.
diff --git a/src/version.c b/src/version.c
index e8799ad..f0ccd20 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5005,
+/**/
     5004,
 /**/
     5003,