18c4ccd2c3 changed JGit version from the 3.7.0.201502260915-r.58-g65c379e
to the 3.7.1.201504261725-r. However, except for the one new commit
which the 3.7.1.201504261725-r brought, this was effectively a JGit
downgrade.
We need to upgrade JGit to a version which contains the fix
for the [1] and is a successor of the snapshot version
3.7.0.201502260915-r.58-g65c379e which was used in the 2.10.3.1.
[1] https://bugs.eclipse.org/bugs/show_bug.cgi?id=465509
Change-Id: I7b5f21700c6cda20b000e1e55266015f081b66bf
1754784fa6