RFR: Fix webrev generation when target hunk is empty

[Robin Westberg via github.com]

On Mon, 26 Aug 2019 08:39:56 GMT, Erik Duveblad via github.com <duke at openjdk.java.net> wrote:

> Hi all,
> 
> this patch similar to one Robin did a few days ago. Robin fixed generation of webrevs when a source hunk in a patch was empty, this change fixes generation of webrevs when a target hunk in the patch is empty and starts at 0 (i.e. the user has removed lines from the start of a file).
> 
> ## Testing
> - [x] `sh gradlew test` passes on Linux x86_64
> - Added new unit test
> 
> Thanks,
> Erik
> 
> ----------------
> 
> Commits:
>  - db9b79c6:	Fix webrev generation when target hunk is empty
> 
> Pull request:
> https://git.openjdk.java.net/skara/pull/82
> 
> Webrev:
> https://webrevs.openjdk.java.net/skara/82/webrev.00
> 
> Patch:
> https://git.openjdk.java.net/skara/pull/82.diff
> 
> Fetch command:
> git fetch https://git.openjdk.java.net/skara pull/82/head:pull/82

This PR has been reviewed by Robin Westberg via github.com - changes are approved. Review comment:

Looks good!

PR: https://git.openjdk.java.net/skara/pull/82