The issue checkers display the line number and line content of each
offending line, but don't show the location of the issue within a line.
Improve checkstyle by adding a marker that points to the exact location.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
aad5837d70