patch 8.1.2376: preprocessor indents are incorrect

Problem:    Preprocessor indents are incorrect.
Solution:   Fix the indents. (Ken Takata, closes #5298)
diff --git a/src/version.c b/src/version.c
index a2e1ddb..036a4bd 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2376,
+/**/
     2375,
 /**/
     2374,