Optimize size of BufferedWriteSyncer by moving stopped bool field

[lancoLiu]

No description provided.

[codecov]

Codecov Report

Merging #984 (5d123f3) into master (81879d1) will decrease coverage by 0.09%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #984      +/-   ##
==========================================
- Coverage   98.20%   98.10%   -0.10%     
==========================================
  Files          46       46              
  Lines        2056     2056              
==========================================
- Hits         2019     2017       -2     
- Misses         29       30       +1     
- Partials        8        9       +1     

Impacted Files	Coverage Δ
zapcore/buffered_write_syncer.go	100.00% <ø> (ø)
zapcore/sampler.go	96.22% <0.00%> (-3.78%)	⬇️

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[prashantv]

Keeping the 2 bool fields next to each other avoids wasting an additional word. Verified that the size of BufferedWriteSyncer drops from 104 bytes to 96 bytes with this change on amd64.