patch 7.4.1527
Problem:    Channel test is flaky on MS-Windows.
Solution:   Limit the select() timeout to 50 msec and try with a new socket if
            it fails.
diff --git a/src/version.c b/src/version.c
index e98a2ae..af4ebc0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -744,6 +744,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1527,
+/**/
     1526,
 /**/
     1525,