netusagemoninitor@pdcurtis (NUMA) Update to v3.1.2

[pdcurtis]

• Change spawn_command_line_sync to spawn_command_line_async to remove one reason for 'dangerous' classification.
• Correct several spelling errors in comments and .md files.

Does anybody know an alternative to use of Gtop which also leads to the 'dangerous classification being set? The code using it is minimal

this.gtop = new GTop.glibtop_netload();
and

GTop.glibtop_get_netload(this.gtop, this.monitoredInterfaceName);
this.upOld = this.gtop.bytes_out;
this.downOld = this.gtop.bytes_in;