Closes #18: Fix bogus log.debug() statement that caused KeyError exception.

We had a log.debug() statement in there that was explicitly trying to
print out the key value from a dict, only if the key didn't exist in
that dict. This obviously caused a KeyError exception. This fix
cleans up the log statement.

Change-Id: I175c4613620a4117e6481feb74cc400729d82b55
Merge "Closes #18: Fix bogus log.debug() statement that caused KeyError exception."