monogame-patcher: Return exitcode 1 on CLI error

If there is a command line usage error, we really don't want the program
to return exit status 0 (success), so let's actually set the return
value on WithParsed().

Signed-off-by: aszlig <aszlig@nix.build>

1 files changed, 4 insertions, 2 deletions

diff --git a/pkgs/games/build-support/monogame-patcher/src/patcher.cs b/pkgs/games/build-support/monogame-patcher/src/patcher.cs
index 8e4f8ddd..bf572d9c 100644
--- a/pkgs/games/build-support/monogame-patcher/src/patcher.cs
+++ b/pkgs/games/build-support/monogame-patcher/src/patcher.cs
@@ -170,9 +170,11 @@ public class patcher {
                 settings.MaximumDisplayWidth = 80;
         });
 
+        var retval = 0;
         parser.ParseArguments<FixFileStreamsCmd, ReplaceCallCmd>(args)
             .WithParsed<FixFileStreamsCmd>(opts => new FixFileStreams(opts))
-            .WithParsed<ReplaceCallCmd>(opts => new ReplaceCall(opts));
-        return 0;
+            .WithParsed<ReplaceCallCmd>(opts => new ReplaceCall(opts))
+            .WithNotParsed(_ => retval = 1);
+        return retval;
     }
 }