Fix for `Console.failInfo` and `Console.failWarn` when `pretty` is false
Fix for `Console.failInfo` and `Console.failWarn` when `pretty` is false

These functions were both using the `Console._fail` function which is passed a severity of failure as a string (e.g. "warn", "error", etc.) which corresponds to the appropriate `Console` function.  Previously, the string was just being called as if it was a function.

Fixes meteor/meteor#7882

mjmasn/meteor,Hansoft/meteor,mjmasn/meteor,Hansoft/meteor,Hansoft/meteor,mjmasn/meteor,mjmasn/meteor,Hansoft/meteor,mjmasn/meteor,mjmasn/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,mjmasn/meteor