Preserve newlines in testrunner log
Preserve newlines in testrunner log

If an error is logged with new lines, it appears differently in the test results log than it does in the JS console. This is because empty lines generate empty divs that take up no space.

RELNOTES: Preserved newlines in testrunner log output

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=249347001

google/closure-library,google/closure-library,google/closure-library,lucidsoftware/closure-library,lucidsoftware/closure-library,google/closure-library,google/closure-library,lucidsoftware/closure-library,lucidsoftware/closure-library