patch 8.2.0607: gcc warns for using uninitialized variable

Problem:    Gcc warns for using uninitialized variable. (John Marriott)
Solution:   Set name_end also for environment variables.
diff --git a/src/version.c b/src/version.c
index b95c7ee..f175ff3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    607,
+/**/
     606,
 /**/
     605,