Bug 840146 - Don't try to install updater.png with --disable-updater. r=glandium

browser/installer/package-manifest.in

@@ -566,10 +566,12 @@
 #ifndef XP_MACOSX
 ; shell icons
 @BINPATH@/browser/icons/*.png
+#ifdef MOZ_UPDATER
 ; updater icon
 @BINPATH@/icons/updater.png
 #endif
 #endif
+#endif
 
 ; [Default Preferences]
 ; All the pref files must be part of base to prevent migration bugs