Bump version number to 5.0.1.2

Author: HMBSbige

shadowsocks-csharp/Controller/UpdateChecker.cs

@@ -21,7 +21,7 @@ public class UpdateChecker
 
         public const string Name = @"ShadowsocksR";
         public const string Copyright = @"Copyright © HMBSbige 2019 & BreakWa11 2017. Fork from Shadowsocks by clowwindy";
-        public const string Version = @"5.0.1.0";
+        public const string Version = @"5.0.1.2";
 
         public const string FullVersion = Version +
 #if IsDotNetCore