url2shortid: for after == false
url2shortid: for after == false

fix where after is false to only pick first chunk in shortid
prior to seperator.

Signed-off-by: Nathaniel Clark <865dbb93f30fb195f09da9caf5665329e84a4b97@misrule.us>

utopiabound/redditp,utopiabound/redditp