From c828bed0e15cb7b545403c49a1c3b56c53f26488 Mon Sep 17 00:00:00 2001
From: Mario Krehl <mkrehl@science-computing.de>
Date: Wed, 7 Sep 2016 10:37:16 +0200
Subject: [PATCH] Fix panic! when reaching unreachable!, because imag doesnt do
 anything without an argument or subcommand

---
 bin/src/main.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/src/main.rs b/bin/src/main.rs
index de383068..b708b861 100644
--- a/bin/src/main.rs
+++ b/bin/src/main.rs
@@ -114,7 +114,7 @@ fn main() {
     let commands = get_commands();
     let helptext = help_text(commands);
     let app      = Runtime::get_default_cli_builder(appname, version, about)
-        .settings(&[AppSettings::AllowExternalSubcommands])
+        .settings(&[AppSettings::AllowExternalSubcommands, AppSettings::ArgRequiredElseHelp])
         .arg(Arg::with_name("version")
              .long("version")
              .takes_value(false)