patch 8.0.1724: declarations cannot be halfway a block

Problem:    Declarations cannot be halfway a block.
Solution:   Move one declaration to check if this works for all compilers.
diff --git a/src/version.c b/src/version.c
index bdd1a3d..f81bcfa 100644
--- a/src/version.c
+++ b/src/version.c
@@ -763,6 +763,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1724,
+/**/
     1723,
 /**/
     1722,