Check if a path is inside another path
$ npm install --save is-path-inside
var isPathInside = require('is-path-inside');
isPathInside('a/b/c', 'a/b');
//=> true
isPathInside('a/b/c', 'x/y');
//=> false
isPathInside('a/b/c', 'a/b/c');
//=> false
isPathInside('/Users/sindresorhus/dev/unicorn', '/Users/sindresorhus');
//=> true
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