Update JGit to 0.9.3.197-g51bf8ea

This version resolves issues with the rename detector getting
stuck in an infinite loop on certain types of large files.

Change-Id: Ie01d0a3154de2f67f53942a24909f38cb9cb2fcc
Signed-off-by: Shawn O. Pearce <sop@google.com>
2 files changed