static char *sccsid
= "@(#)nice.c 4.1 (Berkeley) %G%";
extern char *sys_errlist
[];
if(argc
> 1 && argv
[1][0] == '-') {
nicarg
= atoi(&argv
[1][1]);
fputs("usage: nice [ -n ] command\n", stderr
);
execvp(argv
[1], &argv
[1]);
fprintf(stderr
, "%s: %s\n", sys_errlist
[errno
], argv
[1]);