Fix for opening certain filenames in the EDI file export.

The feature for checking your EDI file when it has been created
will not open all filenames / paths.
The failing files / paths are those with one or more spaces in them.
The remedy is to quote the string. The same error exists in
the Cabrillo export as well.  (ok2cqr#517)

src/fCabrilloExport.pas

@@ -163,7 +163,7 @@ procedure TfrmCabrilloExport.ViewFile(f:string);
   try
     prg := cqrini.ReadString('ExtView', 'txt', '');
     if prg<>'' then
-      dmUtils.RunOnBackground(prg + ' ' + f)
+      dmUtils.RunOnBackground(prg + ' ' + '"' + f + '"')
      else ShowMessage('No external text viewer defined!'+#10+'See: prefrences/External viewers');
   finally
    //done

src/fEDIExport.pas

@@ -159,7 +159,7 @@ procedure TfrmEDIExport.btnResultFileClick(Sender: TObject);
   try
     prg := cqrini.ReadString('ExtView', 'txt', '');
     if prg<>'' then
-      dmUtils.RunOnBackground(prg + ' ' + edtFileName.Text)
+      dmUtils.RunOnBackground(prg + ' ' + '"' + edtFileName.Text + '"')
      else ShowMessage('No external text viewer defined!'+#10+'See: prefrences/External viewers');
   finally
    //done