patch 8.0.0481: unnecessary if statement

Problem:    Unnecessary if statement.
Solution:   Remove the statement.  Fix "it's" vs "its" mistakes. (Dominique
            Pelle, closes #1568)
diff --git a/src/version.c b/src/version.c
index 69b4990..007a1e6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    481,
+/**/
     480,
 /**/
     479,