Update JGit to 0.5.0-62-gc70915d

This version contains the patch necessary to ReceivePack to avoid
disposing the RevFlag used by ReceivePack during advertisement, as
doing so confuses the merge base tests we perform during our hook.

Bug: GERRIT-256
Signed-off-by: Shawn O. Pearce <sop@google.com>
1 file changed