Use single console.error() statement in error handler

[mpvosseller]

Removes two console.error() statements that take no arguments and appears only to be used for formatting purposes. To maintain the current formatting this adds a \n before and after the logged error message.

This fixes #1470 which reports that console.error() statements with no arguments cause noise in AWS Cloudwatch.

[codecov]

Codecov Report

Merging #1471 into master will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1471      +/-   ##
==========================================
- Coverage   99.38%   99.37%   -0.01%     
==========================================
  Files           4        4              
  Lines         485      483       -2     
  Branches      132      132              
==========================================
- Hits          482      480       -2     
  Partials        3        3              

Impacted Files	Coverage Δ
lib/application.js	98.26% <100.00%> (-0.03%)	⬇️

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