fix quoting in click installer egrep call

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.200) UNRELEASED; urgency=low
+
+  * use proper quoting for egrep call in click installer
+
+ -- Oliver Grawert <ogra@ubuntu.com>  Tue, 26 Nov 2013 16:41:56 +0100
+
 livecd-rootfs (2.199) trusty; urgency=low
 
   * make the click package installation check for proper architecture before

live-build/ubuntu-touch/hooks/60-install-click.chroot

@@ -20,7 +20,7 @@ CLICKARCH=$(dpkg --print-architecture)
 wget --no-verbose -O "$tmpdir/click_list" "$click_list"
 for package in $(cat "$tmpdir/click_list")
 do
-    if echo $package | egrep -q _$CLICKARCH.click|_all.click|_unknown.click; then
+    if echo $package | egrep -q "_$CLICKARCH.click|_all.click|_unknown.click"; then
         echo "Setting up $package"
         wget --no-verbose -O "$tmpdir/$package" "$click_uri/$package"
         click install --force-missing-framework --root="$click_db" --all-users \