Disable CommandLine custom assembly attributes since they crash Mono.

src/updater/CitizenMP Server Updater.csproj

@@ -21,7 +21,7 @@
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DefineConstants>TRACE;DEBUG;NO_COMMANDLINE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <Prefer32Bit>false</Prefer32Bit>
@@ -31,7 +31,7 @@
     <PlatformTarget>AnyCPU</PlatformTarget>
     <DebugType>pdbonly</DebugType>
     <Optimize>true</Optimize>
-    <DefineConstants>TRACE</DefineConstants>
+    <DefineConstants>TRACE;NO_COMMANDLINE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <Prefer32Bit>false</Prefer32Bit>

src/updater/CommandLineOptions.cs

@@ -46,9 +46,13 @@ namespace CitizenMP.Server.Installer
             }
 
             help.AddPreOptionsLine(" ");
+#if NO_COMMANDLINE
             help.AddPreOptionsLine(((AssemblyLicenseAttribute)assembly
                 .GetCustomAttributes(typeof(AssemblyLicenseAttribute), false)
                 .Single()).Value.Trim());
+#endif
+            help.AddPreOptionsLine(
+                "This is free software. You may redistribute copies of it under the terms of the MIT License <http://www.opensource.org/licenses/mit-license.php>.");
             help.AddPreOptionsLine(" ");
             help.AddPreOptionsLine(string.Format("{0}{1} [options...] \"<targetpath>\"",
                 Process.GetCurrentProcess().ProcessName,