applied file header rule

Author: Petr Sramek

src/PolylineAlgorithm/InvalidPolylineException.cs

@@ -16,10 +16,7 @@ namespace PolylineAlgorithm;
 /// </summary>
 [SuppressMessage("Design", "CA1032:Implement standard exception constructors", Justification = "Internal use only.")]
 [DebuggerDisplay($"{nameof(InvalidPolylineException)}: {{ToString()}}")]
-public sealed class InvalidPolylineException : Exception
-    
-    
-    {
+public sealed class InvalidPolylineException : Exception {
     private InvalidPolylineException(string message)
         : base(message) { }