argv_exp2
if (argv_exp2(sp, &cmd, bname, strlen(bname))) {
if (argv_exp2(sp, ecp, ecp->cp, ecp->clen))
if (argv_exp2(sp, cmdp, arg, arglen))
if (argv_exp2(sp, cmdp, p, strlen(p)))
int argv_exp2(SCR *, EXCMD *, char *, size_t);
if (argv_exp2(sp, &cmd, p, len + 1)) {