Fix a bug in Concurrent::ContinuationQueue#poll where timeouts are floored to the nearest second.
Fix a bug in Concurrent::ContinuationQueue#poll where timeouts are floored to the nearest second.

teodor-pripoae/bunny,pressrelations/bunny,jafrog/bunny,wconrad/bunny,bartj3/bunny,bartj3/bunny,wconrad/bunny,0xfaded/bunny,gferguson-gd/bunny,jafrog/bunny,teodor-pripoae/bunny,pressrelations/bunny,0xfaded/bunny,gferguson-gd/bunny