Use target in logs and not host

[treydock]

Avoid conflicts with Splunk host value

[codecov-io]

Codecov Report

Merging #1 into master will not change coverage by %.
The diff coverage is 62.50%.

@@           Coverage Diff           @@
##           master       #1   +/-   ##
=======================================
  Coverage   73.57%   73.57%           
=======================================
  Files           3        3           
  Lines         193      193           
=======================================
  Hits          142      142           
  Misses         46       46           
  Partials        5        5           

Impacted Files	Coverage Δ
collector/collector.go	83.78% <57.14%> (ø)
ssh_exporter.go	45.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 723f794...0f72799. Read the comment docs.