[gnome-control-center] network: Use AM_CPPFLAGS rather than INCLUDES

[Bastien Nocera <hadess src gnome org>]

commit 32d2058ecd76673def7ecf436fa8dff53c10451a
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Wed Jun 25 11:56:03 2014 +0200

    network: Use AM_CPPFLAGS rather than INCLUDES
    
    This is deprecated in newer automake versions, and this causes warnings
    with automake 1.14:
    panels/printers/Makefile.am:3: warning: 'INCLUDES' is the old name for
    AM_CPPFLAGS' (or '*_CPPFLAGS')
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732189

 panels/network/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/panels/network/Makefile.am b/panels/network/Makefile.am
index d1b2b00..f78395d 100644
--- a/panels/network/Makefile.am
+++ b/panels/network/Makefile.am
@@ -2,7 +2,7 @@ cappletname = network
 
 SUBDIRS = wireless-security connection-editor
 
-INCLUDES =                                             \
+AM_CPPFLAGS =                                          \
        $(PANEL_CFLAGS)                                 \
        $(NETWORK_PANEL_CFLAGS)                         \
        $(NETWORK_MANAGER_CFLAGS)                       \