Add package argument

[thomasrockhu]

Depends on codecov/codecov-bash#378

[codecov]

Codecov Report

Merging #168 (089f66b) into master (7d5dfa5) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #168   +/-   ##
=======================================
  Coverage   87.50%   87.50%           
=======================================
  Files           2        2           
  Lines          16       16           
  Branches        2        1    -1     
=======================================
  Hits           14       14           
  Misses          2        2           

Flag	Coverage Δ
unittest	?

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[drazisil-codecov]

Got it :)