Revert "Pylint - Updates to remove disablement of pylint warnings present in"

This reverts commit f5d62e42ae52faca1b0a5aa38f272765cc538e66.
resolve pylint errors on Fedora 19

addressing:
+ pylint --rcfile=/etc/spacewalk-pylint.rc --additional-builtins=_ katello
************* Module katello.client.core.utils
W1401:296,0: Anomalous backslash in string: '\0'. String constant might be missing an r prefix.
W1401:298,0: Anomalous backslash in string: '\0'. String constant might be missing an r prefix.
W1401:309,0: Anomalous backslash in string: '\0'. String constant might be missing an r prefix.
W1401:320,0: Anomalous backslash in string: '\|'. String constant might be missing an r prefix.
Merge pull request #1391 from xsuchy/pull-req-pylint-F19

resolve pylint errors on Fedora 19