[plots] some further PEP8 cosmetic
[plots] some further PEP8 cosmetic

git-svn-id: https://svn.zmaw.de/svn/pycmbs/trunk@527 46f1e1ae-ddaa-4461-89cc-888b818d8ef3

Former-commit-id: 4799b7fea91cb79f385244a497752250ce5f20d6
pygeo/pycmbs,pygeo/pycmbs