Fix indentation in scripts/traverse.js (#4419)
Fix indentation in scripts/traverse.js (#4419)

Purely cosmetic, but will definitely help with readability.  Unfortunately the indentation within the traverse script was skewed, making it a little hard to read.  This PR intends to fix just that.
mdn/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data