Ensure ANSI is disabled in ManPageGeneratorTest regardless of environ…

[dwalluck]

…ment (issue #1103)

[dwalluck]

Sorry that I didn't find this one at the same time as #1166. I think that I hadn't updated my master branch maybe.

[codecov-commenter]

Codecov Report

Merging #1170 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1170   +/-   ##
=========================================
  Coverage     94.29%   94.29%           
  Complexity      455      455           
=========================================
  Files             2        2           
  Lines          6661     6661           
  Branches       1792     1792           
=========================================
  Hits           6281     6281           
  Misses          102      102           
  Partials        278      278           

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[remkop]

Merged.

Thanks for catching this!