This fixes some byte-compiler warnings on Emacs 28.
Compiling file /home/skangas/wip/emacs-packages/powerline/powerline.el at Mon Jan 3 03:54:46 2022
Entering directory ‘/home/skangas/wip/emacs-packages/powerline/’
powerline.el:142:1: Warning: custom-declare-variable
`powerline-gui-use-vcs-glyph' docstring wider than 80 characters
In pl/create-or-get-cache:
powerline.el:152:8: Warning: docstring wider than 80 characters
In powerline-desktop-save-delete-cache:
powerline.el:184:8: Warning: docstring wider than 80 characters
In pl/make-xpm:
powerline.el:262:8: Warning: docstring wider than 80 characters
In pl/percent-xpm:
powerline.el:297:8: Warning: docstring wider than 80 characters
In powerline-hud:
powerline.el:318:8: Warning: docstring wider than 80 characters
In powerline-raw:
powerline.el:396:8: Warning: docstring wider than 80 characters
In powerline-fill-center:
powerline.el:422:8: Warning: docstring wider than 80 characters
Compiling file /home/skangas/wip/emacs-packages/powerline/powerline-separators.el at Mon Jan 3 04:00:17 2022
powerline-separators.el:33:1: Warning: defvar `powerline-image-apple-rgb'
docstring wider than 80 characters
In pl/row-pattern:
powerline-separators.el:94:8: Warning: docstring wider than 80 characters
In pl/pattern-defun:
powerline-separators.el:132:8: Warning: docstring wider than 80 characters
This fixes some byte-compiler warnings on Emacs 28.