Kill tabs in run.in

They should not have ended up there in the first place

run.in

@@ -7,8 +7,8 @@ ABS_BUILDDIR='@ABS_BUILDDIR@'
 
 # Start up gsd, etc.
 if ! dbus-send --session --dest=org.freedesktop.DBus \
-	     --type=method_call --print-reply /org/freedesktop/DBus \
-	     org.freedesktop.DBus.ListNames \
+               --type=method_call --print-reply /org/freedesktop/DBus \
+               org.freedesktop.DBus.ListNames \
    | grep -qs '[o]rg\.gnome.Mutter\.DisplayConfig'; then
    helpers/mutter-dbus-stub-mock.py &
 fi