return diff position start from 0?

[GoogleCodeExporter]

What steps will reproduce the problem?
Run sample code (BasicJavaApp_Task1) of 
http://code.google.com/p/java-diff-utils/wiki/SampleUsage

What is the expected output? 
The position should start from 1.
What do you see instead?
The position should start from 0.

What version of the product are you using? On what operating system?
1.2.1 & windows 7 Enterprise

Please provide any additional information below.

Original issue reported on code.google.com by [email protected] on 16 May 2012 at 1:38