update fcitx-gtk install script against new gtk2

fcitx-gtk/PKGBUILD

@@ -3,12 +3,12 @@
 pkgbase=fcitx-gtk
 pkgname=('fcitx-gtk2' 'fcitx-gtk3')
 pkgver=4.2.7
-pkgrel=2
+pkgrel=3
 pkgdesc="Gtk im module for fcitx"
 arch=('i686' 'x86_64')
 url="http://code.google.com/p/fcitx/"
 license=('GPL')
-makedepends=('fcitx>=4.2.7' 'gtk2' 'gtk3' 'cmake')
+makedepends=('fcitx>=4.2.7' 'gtk2>=2.24.22' 'gtk3' 'cmake')
 source=(http://fcitx.googlecode.com/files/${pkgbase}-${pkgver}.tar.xz)
 md5sums=('c178aeca39bd2e24a907d4540503595d')
 

fcitx-gtk/fcitx-gtk2.install

@@ -1,7 +1,5 @@
 post_install() {
-  if res="$(usr/bin/gtk-query-immodules-2.0)"; then
-    echo "$res" > etc/gtk-2.0/gtk.immodules
-  fi
+  /usr/bin/gtk-query-immodules-2.0 --update-cache
 }
 
 post_upgrade() {