Use string primitive instead of String wrapper object Fixes #134

[bcaudan]

No description provided.

[codecov]

Codecov Report

Merging #137 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #137   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          14     14           
  Lines         413    413           
  Branches       54     54           
=====================================
  Hits          413    413

Impacted Files	Coverage Δ
src/processors/default-processor.ts	100% <100%> (ø)	⬆️
src/display/execution-display.ts	100% <100%> (ø)	⬆️
src/display-processor.ts	100% <100%> (ø)	⬆️
src/display/summary-display.ts	100% <100%> (ø)	⬆️
src/processors/spec-prefixes-processor.ts	100% <100%> (ø)	⬆️
src/processors/suite-numbering-processor.ts	100% <100%> (ø)	⬆️
src/processors/spec-durations-processor.ts	100% <100%> (ø)	⬆️
src/processors/spec-colors-processor.ts	100% <100%> (ø)	⬆️
src/display/logger.ts	100% <100%> (ø)	⬆️

---

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 8fd461e...d69a892. Read the comment docs.