remove spaces at the end of lines in the command string

PROMS/XYPlots/XYPlots.cs

@@ -444,6 +444,7 @@ namespace XYPlots
 		{
 			int ptr = 0;
 			Buff = Buff.Trim(" \r\n".ToCharArray());
+			while (Buff.Contains("> ")) Buff = Buff.Replace("> ", ">");
 			if (Buff.StartsWith("<<G "))
 			{
 				Buff = Buff.Substring(4);