Feature request: Shortening of the number of the horizontal space that the list of minor modes uses

[louisch]

Currently, if the window isn't wide enough, then the list of minor modes stretches off the screen, and hides the line number indicator. At least on my setup, it means that the window has to be the sole window in the frame, and the frame has to be maximized to actually see the line number.

It would be nice if I could at least impose a limit on the maximum number of characters that the list of minor modes uses via a variable, and powerline would cut the list at an appropriate place if it exceeds that limit.

Best would be if the power line could simply shorten the list, or any other parts of the power line, if it detects that the power line has exceeded the horizontal space available to that window.