some minor pep8-ish fixes
some minor pep8-ish fixes

funbaker/astropy,astropy/astropy,AustereCuriosity/astropy,saimn/astropy,StuartLittlefair/astropy,funbaker/astropy,mhvk/astropy,joergdietrich/astropy,joergdietrich/astropy,aleksandr-bakanov/astropy,mhvk/astropy,funbaker/astropy,kelle/astropy,joergdietrich/astropy,lpsinger/astropy,lpsinger/astropy,stargaser/astropy,bsipocz/astropy,lpsinger/astropy,StuartLittlefair/astropy,dhomeier/astropy,AustereCuriosity/astropy,StuartLittlefair/astropy,mhvk/astropy,kelle/astropy,AustereCuriosity/astropy,MSeifert04/astropy,lpsinger/astropy,saimn/astropy,saimn/astropy,dhomeier/astropy,pllim/astropy,aleksandr-bakanov/astropy,DougBurke/astropy,mhvk/astropy,pllim/astropy,dhomeier/astropy,larrybradley/astropy,AustereCuriosity/astropy,bsipocz/astropy,mhvk/astropy,AustereCuriosity/astropy,joergdietrich/astropy,larrybradley/astropy,larrybradley/astropy,saimn/astropy,saimn/astropy,bsipocz/astropy,pllim/astropy,MSeifert04/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,stargaser/astropy,funbaker/astropy,dhomeier/astropy,pllim/astropy,kelle/astropy,larrybradley/astropy,dhomeier/astropy,astropy/astropy,astropy/astropy,bsipocz/astropy,tbabej/astropy,stargaser/astropy,kelle/astropy,MSeifert04/astropy,MSeifert04/astropy,tbabej/astropy,DougBurke/astropy,tbabej/astropy,kelle/astropy,aleksandr-bakanov/astropy,pllim/astropy,astropy/astropy,joergdietrich/astropy,DougBurke/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,stargaser/astropy,tbabej/astropy,DougBurke/astropy,tbabej/astropy,lpsinger/astropy,astropy/astropy