treewide: xdg_utils -> xdg-utils

pkgs/applications/networking/browsers/firefox/wrapper.nix

@@ -1,5 +1,5 @@
 { stdenv, lib, makeDesktopItem, makeWrapper, lndir, config
-, replace, fetchurl, zip, unzip, jq, xdg_utils, writeText
+, replace, fetchurl, zip, unzip, jq, xdg-utils, writeText
 
 ## various stuff that can be plugged in
 , flashplayer, hal-flash
@@ -265,7 +265,7 @@ let
             --suffix LD_LIBRARY_PATH ':' "$libs" \
             --suffix-each GTK_PATH ':' "$gtk_modules" \
             --suffix-each LD_PRELOAD ':' "$(cat $(filterExisting $(addSuffix /extra-ld-preload $plugins)))" \
-            --prefix PATH ':' "${xdg_utils}/bin" \
+            --prefix PATH ':' "${xdg-utils}/bin" \
             --prefix-contents PATH ':' "$(filterExisting $(addSuffix /extra-bin-path $plugins))" \
             --suffix PATH ':' "$out${browser.execdir or "/bin"}" \
             --set MOZ_APP_LAUNCHER "${browserName}${nameSuffix}" \