Description of problem:

The following shows up on a startup:

Starting udev: udevd[399]: parse_file: line too long, rule skipped
'/etc/udev/rules.d/60-libsane.rules:772'

Luckily no harm done with skipping as line 772 from these rules
(sane-backends-1.0.18-1.fc6) happens to be a comment.  It is indeed
quite long, with 558 characters in it, but why an attempt to parse?

Or this should be charged to sane-backends?  The comment in question
could be easily split in a few lines.

OTOH udev documentation does not seem to mention that there are length
limits on rule lines.  That likely should be stated in an explicit
manner (even if it is a udev version dependent).

Version-Release number of selected component (if applicable):
udev-095-3