Add support for special characters in file names

[eseliger]

Closes #43

[codecov]

Codecov Report

Merging #45 into master will increase coverage by 1.20%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #45      +/-   ##
==========================================
+ Coverage   26.91%   28.12%   +1.20%     
==========================================
  Files           5        5              
  Lines        1133     1152      +19     
==========================================
+ Hits          305      324      +19     
  Misses        784      784              
  Partials       44       44              

Impacted Files	Coverage Δ
diff/parse.go	80.85% <100.00%> (+1.28%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update adde711...51b4e38. Read the comment docs.

[keegancsmith]

Is stuff from git encoded in the same way that go's Unquote... unquotes? Either way LGTM :)