anchor.diff:  
   ### <a id="environment-variable-path"></a> PATH
   
  -The `PATH` environment variable appends the `node_modules/.bin` directory onto the `$PATH`.
  +The `PATH` environment variable appends the `node_modules/.bin` directory onto the `node` installation path.
   
   * Set by: `yarn-cnb`
   * Phases: `build`
  
positive.code: * Phases: `build`
  * Value: false
  
  ### <a id="environment-variable-npm-config-loglevel"></a> NPM\_CONFIG\_LOGLEVEL
  
  The `NPM_CONFIG_LOGLEVEL` environment variable adjusts the level of logging NPM uses.
  
  
negative.code: 
  ### <a id="environment-variable-node-env"></a> NODE_ENV
  
  The `NODE_ENV` environment variable specifies the environment in which the app runs.
  
  * Set by: `node-engine-cnb`
  * Phases: `build`
  