605b58efb1
checkstyle.py uses single-quoted strings in most locations already. There are a few locations where this wouldn't be convenient (when the string itself contains a single quote, which would then require escaping), but there are also a few other locations where double quotes are used when single quotes would work fine. Change those to standardize on single-quoted strings. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>