Give the user wanting to manually run a discover|arpnip|macsuck job in
the foreground preference over the respective `_min_age` setting. Tiny
quality of life improvement that mostly comes up in debugging.
* On e.g. Cisco N9K, ipv6 objects can be returned undef which crashes the ip alias discovery with `Can't use an undefined value as a HASH reference at .../Discover/Properties.pm line 346.`
* Discovery continues but leaves device_ip empty, which in turn makes device->neighbor non-functional
* Fixed by adding various `$snmp->x || {}` safeguards
* Embedded # characters in the output for show names cause sshcollector not to collect any ARP entries on the ASA platform, since the $prompt variable matches in the middle of the output. Fix is to modify $prompt to match end-of-line.
* Changing the terminal pager length should be done before sending show names instead of after.
* Matching on IP address to see if a name needs to be mapped should include start and end field markers, in the event that the name returned from "show arp" embeds an IP address (eg, "abc1.2.3.4xyz")
* Improve netdisco-sshcollector CLI experience
* add -d <device>
* add -O debug option to toggle Net::OpenSSH::debug
* add -w MCE::Loop max_workers
* updated POD for all of the above
* Fix -Q documentation
* Specifying -Q multiple times has no effect, removed part talking about that.
* Emit Net::OpenSSH connection failures as warnings
Some devices can contain random non-utf8 data in syscontact and syslocation,
making the insert fail with "ERROR: invalid byte sequence for encoding "UTF8"
on discovery. Work around this with Encode::decode.
Christian Ramseyer
