Trim whitespace from property name

[chrsgrffth]

We recently switched our project to use prettier for code formatting which enforces a max length of lines. Some of our variable names are long and/or nested, requiring the var() function to be break onto multiple lines.

It seems that the propertyNode being tested as the property name is including all of the whitespace which causes the plugin to report an error even though the variable does exists. This change removes the whitespace in the propertyName definition before testing it.

With prettier formatting (lint error reported):

Same property, without prettier formatting (no error):

[bcole808]

I am working with @chrsgrffth and can confirm that I also receive a false lint warning when there is whitespace around the property name, and that trimming the whitespace here resolves the issue.

PS: 👋 Hello @jonathantneal !!! 🎉

[chrsgrffth]

Thanks @jonathantneal! What's the process for publishing this patch to npm?