Fixed failure on pypy due to non-immediate close().
Fixed failure on pypy due to non-immediate close().

hawkowl/treq,inspectlabs/treq,ldanielburr/treq,hawkowl/treq,mithrandi/treq,cyli/treq,habnabit/treq,FxIII/treq,glyph/treq,alex/treq,alex/treq