[glib/wip/nacho/gpoll] Use lowercase to include winsock2

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 7f1023b0b804dc0e1a0d637e8ef1c476ced21990
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Fri Dec 28 15:30:28 2018 +0100

    Use lowercase to include winsock2

 glib/tests/gpoll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/glib/tests/gpoll.c b/glib/tests/gpoll.c
index 7ac1bef90..fe7c3951d 100644
--- a/glib/tests/gpoll.c
+++ b/glib/tests/gpoll.c
@@ -17,7 +17,7 @@
  */
 
 #include <glib.h>
-#include <Winsock2.h>
+#include <winsock2.h>
 
 #define NUM_POLLEES 999
 #define NUM_POLLFDS 1000