nix: Show help when no arguments are given

Fixes #1464.
2017-07-14 13:44:45 +02:00
parent 38374a9d35
commit 112ff7833d
4 changed files with 14 additions and 10 deletions
@@ -24,7 +24,7 @@ void Command::printHelp(const string & programName, std::ostream & out)
 MultiCommand::MultiCommand(const Commands & _commands)
    : commands(_commands)
 {
-    expectedArgs.push_back(ExpectedArg{"command", 1, [=](Strings ss) {
+    expectedArgs.push_back(ExpectedArg{"command", 1, true, [=](Strings ss) {
        assert(!command);
        auto i = commands.find(ss.front());
        if (i == commands.end())