Commit 6d87be4d7 (which,ash: changes to which/command/type) let 'which' detect when it's run from a standalone shell by having the shell pass the undocumented '-s' option. A better solution is to alter argv[0] when 'which' is run from a standalone shell. This is possible because the code path through run_noexec_applet_and_exit() and which_main() doesn't actually use argv[0]. - No special treatment is required in ash when 'which' has no arguments or the '--help' option. - tryexec() no longer needs an extra element before the start of argv. The commit 027fb22e2 can be reverted and the allocation of argv in evalcommand() simplified. - 'which' no longer needs to handle the '-s' option. Saves 96-104 bytes.