Pane.addItem is deprecated.

[jhliberty]

Pane::addItem(item, 0) is deprecated in favor of Pane::addItem(item, {index: 0})

Pane.addItem (/Applications/Atom.app/Contents/Resources/app.asar/src/pane.js:462:14)
Object.loadTabs (/Users/jhliberty/.atom/packages/git-tabs/lib/git-tabs.coffee:119:25)
<unknown> (/Users/jhliberty/.atom/packages/git-tabs/lib/git-tabs.coffee:74:24)
process._tickCallback (internal/process/next_tick.js:103:7)