File fix-build.patch of Package easymp3gain

--- unitmain.pas	2009-12-30 23:19:56.000000000 +0100
+++ unitmain.pas.new	2015-03-18 20:49:34.000000000 +0100
@@ -169,7 +169,7 @@
     procedure AddFileAndDirectoryList(SL: TStringList; sublevels: Integer);
     procedure UpdateFileCount;
     procedure SortListView(Lv:TListView; Index:integer; Reverse: Boolean);
-    function AddTask(ASongItem: TSongItem; AMediaGainAction: TMediaGainAction; AVolume: Double): Integer;
+    function AddTask(ASongItem: TSongItem; AMediaGainAction: TMediaGainAction; AVolume: Double): Integer; overload;
     function FitsTaskType(ATask: TMediaGainTask; AMediaGainAction: TMediaGainAction; ASongItem: TSongItem): Boolean;
     { private declarations }
   public