vty tests: attempt to get at sporadic 'Broken Pipe' error

Add verbose logging as well as three retries around the place that often
fails on our build server with a 'Broken Pipe' error.

Change-Id: I8851b76b2d7b87dd500ae40f47e6bea716ef3fc4
1 file changed
tree: e0b8129af3890e8d17f229deb7c5306721f1f50b
  1. contrib/
  2. debian/
  3. openbsc/
  4. .gitignore
  5. .gitreview
  6. .mailmap