Regtest status FreeBSD 13.0 i386 clang

There are the following extra failures compared to amd64 clang

Tests in none

none/tests/fdleak_cmsg                   (stderr)
none/tests/manythreads

manythreads - aborts after running 8192 threads, see issue #85
fdleak_cmesg - I think that this is a FreeBSD regression, see issue #164

Tests in memcheck

memcheck/tests/dw4
memcheck/tests/manuel1                   (stderr)

dw4 - one different error message and one difference to location of error. See issue #125