Empty mocha.opts file throws glob exception

[monowerker]

.../node_modules/mocha/node_modules/glob/glob.js:120
    throw new Error("must provide pattern")
          ^
Error: must provide pattern
    at new Glob (/Users/deric/Dropbox/Projects/mm-api/services/notifications/node_modules/mocha/node_modules/glob/glob.js:120:11)
    at glob (/Users/deric/Dropbox/Projects/mm-api/services/notifications/node_modules/mocha/node_modules/glob/glob.js:57:11)
    at Function.globSync [as sync] (/Users/deric/Dropbox/Projects/mm-api/services/notifications/node_modules/mocha/node_modules/glob/glob.js:76:10)
    at Object.lookupFiles (/Users/deric/Dropbox/Projects/mm-api/services/notifications/node_modules/mocha/lib/utils.js:355:20)
    at runAgain (/Users/deric/Dropbox/Projects/mm-api/services/notifications/node_modules/mocha/bin/_mocha:302:30)
    at Array.forEach (native)
    at Object.<anonymous> (/Users/deric/Dropbox/Projects/mm-api/services/notifications/node_modules/mocha/bin/_mocha:301:6)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)
    at node.js:906:3

[boneskull]

A man goes to the doctor and says, "Doctor, it hurts when I do this." The doctor replies, "Then don't do that." 😄

This is an error, but the error should be caught and reported more nicely.