periodic 100.chksetuid: supress output if diff is purely whitespace

[allanjude]

Summary

the chksetuid periodic script would report differences of unchanged
files if some other file changed and made the inode column wider.

Use diff -b to suppress these actually unchanged lines

PR: 281555
Reported by: [e-mail]
MFC after: 1 week
Relnotes: yes
Sponsored by: Klara, Inc.

[martin_lispworks.com]

I think adding -b will not fix it (and in fact security_status_diff_flags already contains -b by default). The problem with -b is that it only ignores changes in the amount of white space, but doesn't ignore newly added whitespace.

Using -w would probably fix it.

[michaelo]

usr.sbin/periodic/etc/security/security.functions

75

This one is redudant, -b is already default.

[michaelo]

usr.sbin/periodic/etc/security/security.functions

71

Why -q twice? The manpage does not mention that invoking twice changes anything.