Fix `environ` and remove `posix_optarg`.
tree40085ee870a40043d60e2564d51a89bded62888a
-rw-r--r-- 3647 .clang-format
-rw-r--r-- 12149 .gitignore
-rw-r--r-- 1868 .travis.yml
-rw-r--r-- 18097 HelenOS.config
-rw-r--r-- 4799 Makefile
-rw-r--r-- 3708 README.md
drwxr-xr-x - abi
drwxr-xr-x - boot
drwxr-xr-x - contrib
drwxr-xr-x - defaults
drwxr-xr-x - doxygen
drwxr-xr-x - kernel
drwxr-xr-x - release
drwxr-xr-x - tools
drwxr-xr-x - uspace
-rw-r--r-- 1950 version