Fix typos
Found via codespell -q 3 -S ./ChangeLog*,*.po -L als,ang,ba,chello,daa,doubleclick,foto,hist,iff,inport,klass,mut,nd,ower,paeth,params,pard,pevent,sinc,thru,tim,uint
Found via codespell -q 3 -S ./ChangeLog*,*.po -L als,ang,ba,chello,daa,doubleclick,foto,hist,iff,inport,klass,mut,nd,ower,paeth,params,pard,pevent,sinc,thru,tim,uint