Fix increasing runtime

[asadurski]

Closes #404.

[codecov]

Codecov Report

Merging #625 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #625      +/-   ##
==========================================
+ Coverage    95.2%   95.21%   +0.01%     
==========================================
  Files         302      302              
  Lines        2502     2508       +6     
==========================================
+ Hits         2382     2388       +6     
  Misses        120      120

Impacted Files	Coverage Δ
dateparser/date.py	97.96% <100%> (ø)	⬆️
dateparser/freshness_date_parser.py	99% <0%> (+0.06%)	⬆️

---

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 8dfcb43...ebf5079. Read the comment docs.

[noviluni]

Great!