[cr] RFR: 988: Skara webrev is empty if patch has deleted files [v2]

[Erik Joelsson]

> If a file in the patch has been deleted this causes a dereference of an undefined value. To fix this I removed the quick return in fetchFileContent so that this function always returns a value.
> 
> While verifying this, I also noted that the deleted file gets a Raw link which results in a 404. I think it should just not print the Raw link so I removed that too.
> 
> If a file has only been renamed, with no other changes, the patch will be an empty string. This upsets the hunk loop, so I added a case for handling this.
> 
> The resulting webrevs from the two reported patches look correct to me with these changes, but I would appreciate some more eyes on this.

Erik Joelsson has updated the pull request incrementally with one additional commit since the last revision:

  Adjusted for review comments

-------------

Changes:
  - all: https://git.openjdk.java.net/cr/pull/14/files
  - new: https://git.openjdk.java.net/cr/pull/14/files/239d79c2..8eaa628d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=cr&pr=14&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=cr&pr=14&range=00-01

  Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/cr/pull/14.diff
  Fetch: git fetch https://git.openjdk.java.net/cr pull/14/head:pull/14

PR: https://git.openjdk.java.net/cr/pull/14