src-test2/include/err.h, branch release/11.4.0

Revert r330897:

2018-03-29T02:50:57Z

This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code. Revert with prejudice. This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes. Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes. Requested by: gjb (re)

Partial merge of the SPDX changes

2018-03-14T03:19:51Z

These changes are incomplete but are making it difficult to determine what other changes can/should be merged. No objections from: pfg

MFC r312934:

2017-03-14T20:14:57Z

Make use of clang nullability attributes in C headers. Replace uses of the GCC __nonnull__ attribute with the clang nullability qualifiers. These are starting to get use in clang's static analyzer. Replacement should be transparent for developers using clang. GCC ports from older FreeBSD versions may need updating if the compiler was built before r312860 (Jan-27-2017). Hinted by: Apple's Libc-1158.20.4, Bionic libc Relnotes: yes

Remove the Berkeley clause 3's.

2010-02-16T19:39:50Z

Add a few $FreeBSD$

o Merge and into a new header

2002-08-21T16:20:02Z

called . o will continue to live so it can define MD clock macros, which are only MD because of gratuitous differences between architectures. o Change all headers to make use of this. This mainly involves changing: #ifdef _BSD_FOO_T_ typedef _BSD_FOO_T_ foo_t; #undef _BSD_FOO_T_ #endif to: #ifndef _FOO_T_DECLARED typedef __foo_t foo_t; #define _FOO_T_DECLARED #endif Concept by: bde Reviewed by: jake, obrien

Join continuation lines that fit in 80 columns after removal of __P(()).

2002-03-26T01:37:03Z

Breath deep and take __P out of the system include files.

2002-03-23T17:24:55Z

# This appears to not break X11, but I'm having problems compiling the # glide part of the server with or without this patch, so I can't tell # for sure.

$Id$ -> $FreeBSD$

1999-08-27T23:45:13Z

Don't forget to use the appropriate __printflike attribute for verr

1998-11-22T05:12:27Z

and vwarn*. Sorted attributes. UnFrom'ed vendor id.

Add support for -Wformat consistency checking between format strings

1998-10-29T22:18:47Z

and their argument lists for the err(3) family of functions. Note, I intentionally used __printflike instead of __printf0like for warnx. Although a NULL format string is legal for that function, it doesn't make any sense.