Simplify 'wait until interrupt signal' code
Simplify 'wait until interrupt signal' code

(thanks to Uriel on #go-nuts)

anuaimi/geodns,gofort/geodns,anuaimi/geodns,abligh/geodns,abh/geodns,gofort/geodns,anuaimi/geodns,abh/geodns,abligh/geodns,abligh/geodns,gofort/geodns