Fixed bug where pj_str_t was passed to Python when reading Retry-After header

darcs-hash:20081216172503-58103-1a88adbb9bc1fab8aaa9c117e26c8889d561b0e2
enginebuffer: fixed typo in logging

darcs-hash:20081216173644-b2873-234c0a462674240fb5050d9e238766f21f56ec5f