bugfix: io module: ensured read() resumes read in all modes upon EINTR.#17

thibaultcha wants to merge 1 commit intoopenresty:v2.1-agentzhopenresty/luajit2:v2.1-agentzhfrom

thibaultcha:fix/eintr-bisthibaultcha/luajit2:fix/eintr-bisCopy head branch name to clipboard