Don't fail when fraction::Int

[tkf]

No description provided.

[codecov-io]

Codecov Report

Merging #20 into master will decrease coverage by 0.95%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #20      +/-   ##
==========================================
- Coverage   69.87%   68.91%   -0.96%     
==========================================
  Files           1        1              
  Lines         156      148       -8     
==========================================
- Hits          109      102       -7     
+ Misses         47       46       -1

Impacted Files	Coverage Δ
src/ProgressLogging.jl	68.91% <ø> (-0.96%)	⬇️

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