Update options.logging description

[samuliasmala]

Explain why the default console.log is not displaying all information.

[codecov]

Codecov Report

Merging #11653 into master will increase coverage by 3.44%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #11653      +/-   ##
==========================================
+ Coverage   92.41%   95.86%   +3.44%     
==========================================
  Files          91       91              
  Lines        8903     8987      +84     
==========================================
+ Hits         8228     8615     +387     
+ Misses        675      372     -303

Impacted Files	Coverage Δ
lib/sequelize.js	95.31% <ø> (+0.62%)	⬆️
lib/dialects/mariadb/query-generator.js	14.28% <0%> (-85.72%)	⬇️
lib/dialects/mariadb/data-types.js	50.98% <0%> (-49.02%)	⬇️
lib/dialects/mariadb/index.js
lib/dialects/mariadb/connection-manager.js
lib/dialects/mariadb/query.js
lib/dialects/sqlite/index.js	100% <0%> (ø)
lib/dialects/sqlite/query.js	98.65% <0%> (ø)
lib/dialects/sqlite/connection-manager.js	100% <0%> (ø)
lib/data-types.js	91.34% <0%> (+0.34%)	⬆️
... and 10 more

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