Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Fix wrong exit code.
PR: 9321
Submitted by: Bob Van Valzah <Bob@whitebarn.com>

Use quotes around the first_line variable so C comments and other things
that are misinterpreted by echo(1) aren't.

PR: docs/8757
Submitted By: Takeshi OHASHI <ohashi@mickey.ai.kyutech.ac.jp>
Sergei Laskavy <laskavy@gambit.msk.su>

printing examples, automatically generated from
src/share/doc/handbook/printing.sgml with src/tools/tools/epfe/epfe.pl