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.

src/version.c

@@ -743,6 +743,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1527,
 /**/
     1526,
 /**/