tslint-bugfix

tslint config

with tslint-config-prettier: https://www.npmjs.com/package/tslint-config-prettier

tslint rule: label-position

description of this rule: https://palantir.github.io/tslint/rules/label-position/

source code: https://github.com/palantir/tslint/blob/master/src/rules/labelPositionRule.ts