backflip: Handle errors from git checkout/git review.

Catch more errors in order to exit with an error code in such cases.

Change-Id: Ia7ec6aef3e81d4c0d5b5dcb0cc7b0792e9af0463
1 file changed
tree: 00c419873aa84149f3b7793f17e85ad38a965e6b
  1. backflip
  2. backflip-from-tsv