patch 7.4.1520
Problem:    Channel test: Waiting for a file to appear doesn't work.
Solution:   In waitFor() ignore errors.
diff --git a/src/version.c b/src/version.c
index be05a45..15baf5d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -744,6 +744,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1520,
+/**/
     1519,
 /**/
     1518,