Remove "path.existsSync is now called `fs.existsSync`." terminal output

When `existsSync` is declared in some places it checks for `fs.existsSync` first, defaulting to `path.existsSync` when not found.  In other places this is reversed.  In the cases where `path.existsSync` is checked for first, newer versions of node will output a message to the terminal that `path.existsSync` is now `fs.existsSync`.  Reversing the order in these three files gets the declaration consistent with the rest of the code base that already does this, and prevents that message from being output to the terminal.

Ran `npm test`, all test are still passing.

Final summary: Passed: 266, Failed: 0, Skipped: 6, Total: 272, Load errors: 0, Statement coverage: 79.79%, Branch coverage: 66.24%, Function coverage: 85.95%, Line coverage: 80.32%