Fix octicons when using Python 3. (.format was rendering "b'...'".)
Fix octicons when using Python 3. (.format was rendering "b'...'".)

mgoddard-pivotal/grip,jbarreras/grip,ssundarraj/grip,joeyespo/grip,mgoddard-pivotal/grip,joeyespo/grip,jbarreras/grip,ssundarraj/grip