separate filenames

perka@Perka-Notebook ~/android/system/packages/apps/Settings $ git fetch http://review.cyanogenmod.com/p/CyanogenMod/android_packages_apps_Settings refs/changes/22/13122/6 && git cherry-pick FETCH_HEAD
From http://review.cyanogenmod.com/p/CyanogenMod/android_packages_apps_Settings
 * branch            refs/changes/22/13122/6 -> FETCH_HEAD
fatal: ambiguous argument 'FETCH_HEAD': both revision and filename
Use '--' to separate filenames from revisions