os.nim bugfix: system() returns bullshit on Posix-like systems in general
os.nim bugfix: system() returns bullshit on Posix-like systems in general

dom96/Nim,russpowers/Nim,dom96/Nim,russpowers/Nim,dom96/Nim,russpowers/Nim,russpowers/Nim,russpowers/Nim,dom96/Nim,russpowers/Nim,dom96/Nim,dom96/Nim,russpowers/Nim,dom96/Nim