Fix #8: Issue with false SFV positive matching MP3 regex

[codecov[bot]]

Codecov Report

Merging #9 into master will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master       #9   +/-   ##
=======================================
  Coverage   95.90%   95.90%           
=======================================
  Files          10       10           
  Lines         244      244           
  Branches       42       42           
=======================================
  Hits          234      234           
  Misses         10       10           

Impacted Files	Coverage Δ
src/validators/MissingSfv.js	92.85% <100.00%> (ø)

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[maksis]

Thanks