Add undefined check for humanFriendlyTitle

[juuz0]

Fixes #685

[codecov]

Codecov Report

Merging #687 (df2654f) into master (234606b) will not change coverage.
The diff coverage is n/a.

❗ Current head df2654f differs from pull request most recent head 270773d. Consider uploading reports for the commit 270773d to get more accurate results

@@           Coverage Diff           @@
##           master     #687   +/-   ##
=======================================
  Coverage   60.80%   60.80%           
=======================================
  Files          54       54           
  Lines        3944     3944           
  Branches     1994     1994           
=======================================
  Hits         2398     2398           
  Misses       1545     1545           
  Partials        1        1           

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[kelson42]

If title is undefined, the the line 56 is useless or might even fail IMO. I believe we should test first then do the stuff… return empty string otherwise.