patch 9.0.1628: syntax tests fail on FreeBSD

Problem:    Syntax tests fail on FreeBSD.
Solution:   Pass the Vim executable path with VIMPROG. (Ken Takata,
            closes #12535)  Adjust the paths.
diff --git a/src/version.c b/src/version.c
index 56425ab..1235ac9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1628,
+/**/
     1627,
 /**/
     1626,