proxy: fix logger entry memory corruption
proxy: fix logger entry memory corruption

wasn't setting e->size of the log entry, so the data would corrupt.

think I need an assert on e->size not being set from the function?

dormando/memcached,dormando/memcached,memcached/memcached,dormando/memcached,memcached/memcached,dormando/memcached,memcached/memcached,memcached/memcached,memcached/memcached,dormando/memcached