wrong parameter when showing diff

[GoogleCodeExporter]

When showing a diff of two files, a wrong parameter is passed to the 
ShowCompare method.
This does not affect the functionality since the parameter is automatically 
converted to an empty string and that's what should be passed anyway in these 
situations.
But it's a bug non the less.

Original issue reported on code.google.com by tortoisesvn on 18 Jun 2013 at 6:45

[GoogleCodeExporter]

This issue was closed by revision r24415.

Original comment by tortoisesvn on 18 Jun 2013 at 8:16

• Changed state: Fixed

[GoogleCodeExporter]

This issue was closed by revision r24416.

Original comment by tortoisesvn on 18 Jun 2013 at 8:23