FreeBSD/src 93836ffusr.sbin/etcupdate etcupdate.sh

etcupdate: Restrict access to the conflicts directory

In the window during conflict resolution, copies of installed files with
conflicts are added here with the default mode.  Restrict access.

PR:             277470
Reviewed by:    philip, jhb, emaste
Differential Revision:  https://reviews.freebsd.org/D48576

(cherry picked from commit c43ae7ab4bf89c2b274c1cbefe663c456e9211d1)
DeltaFile
+3-0usr.sbin/etcupdate/etcupdate.sh
+3-01 files

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