Generate relative submodule URLs

Requires JGit version that includes
https://git.eclipse.org/r/#/c/94158.

Change-Id: Ibc213946c0e8e0235127d8c6c982a388ea1541c7
3 files changed
tree: 07ece54a10bf45a50a5cb1e31aaeb54b007c7b48
  1. BUILD
  2. LICENSE
  3. src/