tracker: Indentation fix
tracker: Indentation fix

https://bugzilla.gnome.org/show_bug.cgi?id=766587

grilofw/grilo-plugins,MikePetullo/grilo-plugins,jasuarez/grilo-plugins,jasuarez/grilo-plugins,GNOME/grilo-plugins,MikePetullo/grilo-plugins,grilofw/grilo-plugins,MikePetullo/grilo-plugins,GNOME/grilo-plugins