Makes envp.c use w_string_t's as byte strings.
Makes envp.c use w_string_t's as byte strings.

dhruvsinghal/watchman,nodakai/watchman,wez/watchman,kwlzn/watchman,dhruvsinghal/watchman,wez/watchman,facebook/watchman,wez/watchman,nodakai/watchman,dhruvsinghal/watchman,wez/watchman,dhruvsinghal/watchman,facebook/watchman,dhruvsinghal/watchman,facebook/watchman,wez/watchman,nodakai/watchman,kwlzn/watchman,nodakai/watchman,nodakai/watchman,wez/watchman,kwlzn/watchman,facebook/watchman,facebook/watchman,dhruvsinghal/watchman,nodakai/watchman,wez/watchman,kwlzn/watchman,kwlzn/watchman,kwlzn/watchman,nodakai/watchman,wez/watchman,facebook/watchman,nodakai/watchman,dhruvsinghal/watchman,facebook/watchman,wez/watchman,facebook/watchman,kwlzn/watchman,nodakai/watchman,facebook/watchman,dhruvsinghal/watchman