patch 7.4.873
Problem:    Compiler warning for unused variable. (Tony Mechelynck)
Solution:   Remove the variable.  Also fix int vs long_u mixup.
diff --git a/src/version.c b/src/version.c
index 53da1ea..9bbe042 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    873,
+/**/
     872,
 /**/
     871,