Fix SQL logic in PortMAC.pm (imperfectus)

SQL::Abstract::belch(): [SQL::Abstract::_where_field_op_ARRAYREF] Warning: A multi-element arrayref as an
argument to the inequality op '!=' is technically equivalent to an always-true 1=1 (you probably wanted to
say ...{ $inequality_op => [ -and => @values ] }... instead) at
/home/netdisco/perl5/lib/perl5/App/Netdisco/Util/PortMAC.pm line 48

Netdisco/Changes

@@ -14,6 +14,7 @@
 
   * [#85] device property in _no/_only fails with error (R. Kerr)
   * Also prefer port filter when linking to connected devices
+  * Fix SQL logic in PortMAC.pm (imperfectus)
 
 2.021001