Get rid of chatter for failed commands if the filesystem is read-only. Include /var/db/entropy-file in the reseeding if present.  It is used for last-ditch efforts to save entropy and thus should also be used to seed the RNG when starting.  Print a warning instead of an error if writing the file fails -- err() exits, preventing the umask from being restored. Also, since there's not much that can be done about it, notifying the user is all that's needed.
Get rid of chatter for failed commands if the filesystem is read-only.
Include /var/db/entropy-file in the reseeding if present.  It is used for
last-ditch efforts to save entropy and thus should also be used to seed
the RNG when starting.  Print a warning instead of an error if writing the
file fails -- err() exits, preventing the umask from being restored.
Also, since there's not much that can be done about it, notifying the user
is all that's needed.

MFC after:	2 weeks

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase