If clearLine: true then "process.stdout.clearLine is not a function"

[bdbvb]

Works OK with clearLine: false, but when clearLine: true, I get a bunch of errors, the main one appearing to be "process.stdout.clearLine is not a function".

Using "rollup": "0.37.0", and npm/node as follows:

npm version
{ 'asp.net': '1.0.0',
npm: '3.10.8',
ares: '1.10.1-DEV',
http_parser: '2.7.0',
icu: '57.1',
modules: '48',
node: '6.9.1',
openssl: '1.0.2j',
uv: '1.9.1',
v8: '5.1.281.84',
zlib: '1.2.8' }