update default value for PATH

[matthewberryman]

Description of changes:

• Change word "or" to "and" to reflect the fact that the PATH contains all of the listed paths.
• Add /var/lang/bin as checked with following code:
  python3.6:

import os

def lambda_handler(event, context):
    # TODO implement
    return os.environ['PATH']

node8.10:

exports.handler = async (event) => {
    return process.env.PATH;
};

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