patch 9.0.0376: clang warns for dead assignments

Problem:    Clang warns for dead assignments.
Solution:   Adjust the code. (Yegappan Lakshmanan, closes #11048)
diff --git a/src/version.c b/src/version.c
index 1ceb171..1e3f9a3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    376,
+/**/
     375,
 /**/
     374,