Add text file helper for apt-get. (#680)
Add text file helper for apt-get. (#680)

* Add metric for pending upgrades.
* Add metric for pending reboot required.
prometheus/node_exporter,joehandzik/node_exporter,siavashs/node_exporter,derekmarcotte/node_exporter,prometheus/node_exporter,Jean-Daniel/node_exporter,Jean-Daniel/node_exporter,siavashs/node_exporter,derekmarcotte/node_exporter,joehandzik/node_exporter,Jean-Daniel/node_exporter,siavashs/node_exporter,joehandzik/node_exporter,Jean-Daniel/node_exporter,derekmarcotte/node_exporter,derekmarcotte/node_exporter,joehandzik/node_exporter,siavashs/node_exporter,prometheus/node_exporter