vim - How do I split long lines in a .vimrc file?

Question

I've got a line in my .vimrc that is more than 80 chars long:

autocmd FileType python set smartindent cinwords=if,elif,else,for,while,try,except,finally,def,class,with

I find this rather annoying, so I want to break it into multiple lines, but I don't know how to do that. I tried since that does the trick in Python and the Bourne shell, but apparently that's not valid syntax in Vim:

autocmd FileType python set smartindent 
    cinwords=if,elif,else,for,while,try,except,finally,def,class,with

gives

E492: Not an editor command

Can anyone tell me how to split this line?

(Bonus points if someone can tell me how to add to cinwords instead of resetting it entirely; the only thing I wanted to achieve is add the with keyword to it.)

question from:https://stackoverflow.com/questions/10831565/how-do-i-split-long-lines-in-a-vimrc-file

Answer 1

autocmd FileType python set smartindent
     cinwords+=with