From 30123e700dc58b1fb7caf17bffaa51157ccd0b7e Mon Sep 17 00:00:00 2001
From: Misa <infoteddyatgitgud@cock.li>
Date: Sun, 2 Aug 2020 21:30:08 -0700
Subject: [PATCH] Print error and return if given invalid command-line arg

This is helpful to know if the user either spelled an arg wrong, or
spelled it right but nothing is happening.
---
 desktop_version/src/main.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/desktop_version/src/main.cpp b/desktop_version/src/main.cpp
index d66a87d2..fec3f28b 100644
--- a/desktop_version/src/main.cpp
+++ b/desktop_version/src/main.cpp
@@ -134,6 +134,11 @@ int main(int argc, char *argv[])
         }
 #undef ARG_INNER
 #undef ARG
+        else
+        {
+            printf("Error: invalid option: %s\n", argv[i]);
+            return 1;
+        }
     }
 
     if(!FILESYSTEM_init(argv[0], baseDir, assetsPath))