reduce int sizes

Author: georges-hatem

entries/ghatem-fpc/src/OneBRC.lpr

@@ -564,7 +564,7 @@ function MyFormatInt (const aIn: SmallInt): AnsiString; inline;
 
 procedure TOneBRC.GenerateOutput;
 var vStream: TStringStream;
-    I, N: Int64;
+    I, N: Int32;
     vData: PStationData;
     vHash: Cardinal;
     vStations: TStringList;