head -r335307 breaks various builds on ci.freebsd.org (powerpc64, mips64, sparc64)

[Mark Millard]

https://ci.freebsd.org/job/FreeBSD-head-powerpc64-build/6086/consoleText (and later)
shows:

--- all_subdir_tests ---
cc1: warnings being treated as errors
/usr/src/tests/sys/audit/inter-process.c: In function 'atfu_shmat_success_body':
/usr/src/tests/sys/audit/inter-process.c:463: warning: cast from pointer to integer of different size


The following (and later) are similar:

https://ci.freebsd.org/job/FreeBSD-head-mips64-build/2927/consoleText
https://ci.freebsd.org/job/FreeBSD-head-sparc64-build/8245/consoleText


===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)