Improve readability. No functional changes.
Improve readability. No functional changes.

(except one line where we now close the fd instead of just asserting
that the close method exists.)

gquintard/Varnish-Cache,feld/Varnish-Cache,feld/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache,gquintard/Varnish-Cache,gquintard/Varnish-Cache,feld/Varnish-Cache,feld/Varnish-Cache