sh: install hard links with same mode as target

[emaste]

Summary

Previously when using NO_ROOT we recorded METALOG entries for the /.profile hard link with a different file mode than the link target, which is not permitted.

[emaste]

I am not sure why we have /.profile and /.cshrc at all, though?

[emaste]

Similar issue with etc/pam.d/ftp, with the same fix.

[emaste]

Split out sh change

bin/csh/Makefile

164

Have to change this one, because it gets applied to

LINKS=  ${BINDIR}/csh ${BINDIR}/tcsh

also, resulting in

error: entries point to the same inode but have different meta: ./bin/csh,./bin/tcsh in line 11446,11476. off by "mode"

A slightly hacky way to do this would be:

${INSTALL_LINK} ${TAG_ARGS} -m ${CONFMODE} ${DESTDIR}/root/.cshrc ${DESTDIR}/.cshrc

(bsd.links.mk, bsd.own.mk do not include per-file control over ${LINKMODE})