tree dfbd9b5de0c190815ea07f1b3f8e46b7acf14d7a
parent 3ce2a6b46bb368f000d25782e24d701f68f32659
author Shawn O. Pearce <sop@google.com> 1322598776 -0800
committer Shawn O. Pearce <sop@google.com> 1322606584 -0800

Improve error handling when reading loose refs

When repo is trying to figure out branches the repository has by
traversing refs/heads, add exception handling for readline.

Change-Id: If3b2a3720c6496f52f629aa9a2539f186d6ec882