Move initialization closer to use
Move initialization closer to use

Should make it a bit more readable, the variable is used before that
case as well but doesn't require the zero initialization in that case.

baruch/c-capnproto,opensourcerouting/c-capnproto,baruch/c-capnproto,opensourcerouting/c-capnproto,fluffysquirrels/c-capnproto,fluffysquirrels/c-capnproto