fix bug _EXIT(0) calls exit(0) -> _exit(0)
fix bug _EXIT(0) calls exit(0) -> _exit(0)

wkentaro/EusLisp,wkentaro/EusLisp,aginika/EusLisp,aginika/EusLisp,aginika/EusLisp,bmagyar/EusLisp,bmagyar/EusLisp,wkentaro/EusLisp,bmagyar/EusLisp,aginika/EusLisp,wkentaro/EusLisp,bmagyar/EusLisp