Fix system tests for Debian Stretch 9.11

[smira]

No description provided.

[codecov]

Codecov Report

Merging #877 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master    #877      +/-   ##
=========================================
+ Coverage   63.79%   63.8%   +<.01%     
=========================================
  Files          54      54              
  Lines        6673    6672       -1     
=========================================
  Hits         4257    4257              
+ Misses       1890    1889       -1     
  Partials      526     526

Impacted Files	Coverage Δ
deb/remote.go	61.04% <0%> (+0.12%)	⬆️

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