Currently, the test fails on Ruby 2.5.
Coverage report generated for Unit Tests to /home/pocke/ghq/github.com/presidentbeef/brakeman/coverage. 6542 / 11879 LOC (55.07%) covered.
Because ERB uses String#<< instead of concat in Ruby 2.5.
This pull-request will fix the problem.
Because ERB uses `String#<<` instead of `concat` in Ruby 2.5.
Hi @pocke, thank you for this. It appears there are other incompatibilities with ERB in 2.5.0 that need to be tracked down before I can merge this.