commit https://github.com/vim/vim/commit/d9d473ea124339c4dd173127db47c4583645ac2c Author: Bram Moolenaar <Bram@vim.org> Date: Tue Mar 8 19:07:22 2016 +0100 patch 7.4.1520 Problem: Channel test: Waiting for a file to appear doesn't work. Solution: In waitFor() ignore errors.

--- a/src/version.c
+++ b/src/version.c
@@ -744,6 +744,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1520,
+/**/
     1519,
 /**/
     1518,