Fix formatting

[travisbrown]

#3328 had been open a while and broke formatting on master when I merged it. This change fixes it.

[codecov-io]

Codecov Report

Merging #3366 into master will decrease coverage by 0.02%.
The diff coverage is 80.95%.

@@            Coverage Diff             @@
##           master    #3366      +/-   ##
==========================================
- Coverage   93.35%   93.33%   -0.03%     
==========================================
  Files         378      378              
  Lines        7710     7723      +13     
  Branches      204      218      +14     
==========================================
+ Hits         7198     7208      +10     
- Misses        512      515       +3     

Flag	Coverage Δ
#scala_version_212	93.38% <78.94%> (-0.03%)	⬇️
#scala_version_213	93.11% <80.95%> (-0.03%)	⬇️

Impacted Files	Coverage Δ
...eycats-core/src/main/scala/alleycats/std/set.scala	48.93% <55.55%> (-2.23%)	⬇️
...src/main/scala-2.13+/cats/instances/lazyList.scala	100.00% <100.00%> (ø)
core/src/main/scala/cats/data/Chain.scala	98.49% <100.00%> (+0.01%)	⬆️
core/src/main/scala/cats/instances/queue.scala	100.00% <100.00%> (ø)
core/src/main/scala/cats/instances/vector.scala	100.00% <100.00%> (ø)

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