patch 7.4.1457

Problem:    Opening a channel with select() is not done properly.
Solution:   Also used read-fds. Use getsockopt() to check for errors. (Ozaki
            Kiichi)

src/version.c

@@ -743,6 +743,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1457,
 /**/
     1456,
 /**/