patch 7.4.1687

Problem:    The channel close_cb option does not work.
Solution:   Use jo_close_partial instead of jo_err_partial. (Damien)

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1687,
 /**/
     1686,
 /**/