Fix broken managesf replication controller test

Pecan now returns a 404 for GET requests with incorrect path arguments.
This only affects GET requests, because the method _handle_bad_rest_arguments in
pecan/rest.py is only used in _handle_get in pecan/rest.py.

Affecting change: https://github.com/stackforge/pecan/commit/548ac35e

Included in release 0.8.1 from Oct 14 2014:
https://github.com/stackforge/pecan/commit/c7f241fd

Change-Id: I79852937357db6ed331825d37f25c499cb5003e6
Merge "Fix broken managesf replication controller test"