Brand new install, 2 deprecated messages (but on console error output)

[ArfyFR]

Hi,

By installing grunt-cli on a brand new Linux
npm install -g grunt-cli

I get the following warnings on npm error console:

+ [email protected]
added 150 packages from 121 contributors in 7.772s
npm WARN deprecated [email protected]: https://github.com/lydell/resolve-url#deprecated
npm WARN deprecated [email protected]: Please see https://github.com/lydell/urix#deprecated

It seems that source-map-resolve removed the dependencies in 0.6.0
See lydell/source-map-resolve@df81125#diff-b9cfc7f2cdf78a7f4b91a753d10865a2

And it is a dependencies from liftoff

npm ls urix
C:\Users\pasb\AppData\Roaming\npm
`-- [email protected]
  `-- UNMET DEPENDENCY [email protected]
    `-- UNMET DEPENDENCY [email protected]
      `-- UNMET DEPENDENCY [email protected]
        `-- UNMET DEPENDENCY [email protected]
          `-- UNMET DEPENDENCY [email protected]
            `-- UNMET DEPENDENCY [email protected]

(same npm ls for resolve-url)

And "up to date version" of liftoff is 3.1.0, here you have in package.json
"liftoff": "~2.5.0",
As all run well "after", I mean grunt is working, but you may perhaps update grunt-cli or dependencies to avoid this ?