TypeError: console.warning is not a function: lessc fails to output --strict-math warning

[jdufresne]

The warning here:

less.js/bin/lessc

Line 485 in c6813b2

console.warning('--strict-math is deprecated. Use --math=strict');

Does not display. Instead I receive the error TypeError: console.warning is not a function.

Observe:

$ ./node_modules/.bin/lessc -sm=on
TypeError: console.warning is not a function
    at .../node_modules/less/bin/lessc:485:25
    at Array.filter (<anonymous>)
    at .../node_modules/less/bin/lessc:353:17
    at Object.<anonymous> (.../node_modules/less/bin/lessc:545:3)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Function.Module.runMain (module.js:693:10)

Additional info:

$ ./node_modules/.bin/lessc --version
lessc 3.7.0 (Less Compiler) [JavaScript]
$ npm --version
5.6.0
$ node --version
v8.11.3

[calvinjuarez]

@jdufresne Thanks for reporting!