Bring system icon into XDG compliance
(cherry picked from commit 11b4aed088f5474e4edfa42f87ef9594b81e3aa2)

diff --git a/tdenetworkmanager/src/tdenetman-wireless_menuitem.cpp b/tdenetworkmanager/src/tdenetman-wireless_menuitem.cpp
index 09ccb36..f9a1e20 100644
--- a/tdenetworkmanager/src/tdenetman-wireless_menuitem.cpp
+++ b/tdenetworkmanager/src/tdenetman-wireless_menuitem.cpp
@@ -138,7 +138,7 @@
 	}
 
 	if (_adhoc) {
-		TQPixmap pmAdHoc = SmallIcon ("system", h - (_border*2));
+		TQPixmap pmAdHoc = SmallIcon ("computer", h - (_border*2));
 		if (pmAdHoc.size().height() != (h - (_border*2))) {
 			TQImage pmAdHocImg = pmAdHoc.convertToImage();
 			pmAdHocImg = pmAdHocImg.smoothScale(65535, (h - (_border*2)), TQImage::ScaleMin);