src/bin/echo, branch release/13.4.0

Remove $FreeBSD$: one-line nroff pattern

2023-08-23T17:43:32Z

Remove /^\.\\"\s*\$FreeBSD\$$\n/ Similar commit in main: (cherry picked from commit b2c76c41be32)

Remove $FreeBSD$: one-line sh pattern

2023-08-23T17:43:30Z

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/ Similar commit in main: (cherry picked from commit d0b2dbfa0ecf)

Remove $FreeBSD$: one-line .c pattern

2023-08-23T17:43:26Z

Remove /^[\s*]*__FBSDID$"\$FreeBSD\$"$;?\s*\n/ Similar commit in main: (cherry picked from commit 1d386b48a555)

echo(1): Replace errexit() with err(3)

2022-01-07T13:12:12Z

Differential revision: https://reviews.freebsd.org/D32501 Submitted by: christos@ Sponsored by: NVIDIA Networking (cherry picked from commit 4c537df51a16ce004b184010d306e550716f49ea)

Whitespace cleanup

2020-10-29T14:44:09Z

MFC after: 3 days

Remove superfluous `this` in comment

2020-10-29T14:42:02Z

PR: 250721 Submitted by: Hiroya EBINE MFC after: 3 days

Convert `cap_enter() < 0 && errno != ENOSYS` to `caph_enter() < 0`.

2018-06-19T23:43:14Z

No functional change intended.

General further adoption of SPDX licensing ID tags.

2017-11-20T19:49:47Z

Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.

DIRDEPS_BUILD: Update dependencies.

2017-10-31T00:07:04Z

DIRDEPS_BUILD: Connect new directories.

2017-10-31T00:04:07Z