fix #28 again (declare UTF-8 in arrays of strings)

[vh-d]

This should be the last piece to fix #28. The fixes in #30 did not address strings in arrays.

[codecov]

Codecov Report

Merging #36 into master will increase coverage by 0.02%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #36      +/-   ##
==========================================
+ Coverage    60.2%   60.23%   +0.02%     
==========================================
  Files           3        3              
  Lines        1342     1343       +1     
==========================================
+ Hits          808      809       +1     
  Misses        534      534

Impacted Files	Coverage Δ
src/parse.cpp	64.78% <100%> (+0.15%)	⬆️

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[eddelbuettel]

Nice catch.