Fix for issue-670: Changed var to const

[AlvinValdez]

Updated code in filer/src/stats.js to use const instead of var.

[codecov-io]

Codecov Report

Merging #687 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #687   +/-   ##
=======================================
  Coverage   86.71%   86.71%           
=======================================
  Files          16       16           
  Lines        1746     1746           
=======================================
  Hits         1514     1514           
  Misses        232      232

Impacted Files	Coverage Δ
src/stats.js	100% <100%> (ø)	⬆️

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[vincentfullstack]

You can add 'use strict' in the top of the file

[SahibArora]

Try using the steps provided > https://github.com/filerjs/filer/blob/develop/CONTRIBUTING.md#how-to-contribute
Must remove your error if you only changed the var to const/let in previous commits :)

[humphd]

Looks good.

[humphd]

One tip: instead of Fix for issue-670 use Fixes #670 and GitHub will autoclose the issue when this gets merged. See https://help.github.com/articles/closing-issues-using-keywords/