also sanitize server names

OpenRA.Game/Server/Server.cs

@@ -130,6 +130,9 @@ namespace OpenRA.Server
 			Port = localEndpoint.Port;
 
 			Settings = settings;
+
+			Settings.Name = OpenRA.Settings.SanitizedServerName(Settings.Name);
+
 			ModData = modData;
 
 			randomSeed = (int)DateTime.Now.ToBinary();

OpenRA.Game/Settings.cs

@@ -321,6 +321,15 @@ namespace OpenRA
 			return clean;
 		}
 
+		public static string SanitizedServerName(string dirty)
+		{
+			var clean = SanitizedName(dirty);
+			if (string.IsNullOrWhiteSpace(clean))
+				return new ServerSettings().Name;
+			else
+				return clean;
+		}
+
 		public static string SanitizedPlayerName(string dirty)
 		{
 			var forbiddenNames = new string[] { "Open", "Closed" };