regression on v6 on yaml output

[sibelius]

I've generate both .json and .yml files using swagger-jsdoc like this

json generation:
swagger-jsdoc -d ./swaggerConfig.js ./defs/**/*.yml -o api.json

yaml generation
swagger-jsdoc -d ./swaggerConfig.js ./defs/**/*.yml -o api.yml

it worked on v5, and it is outputting .json on api.yml on v6

[kalinchernev]

Thank you @sibelius for reporting the regression! It's fixed in 6.0.1