VE-635: Keyboard shortcut for source editor

https://wikia-inc.atlassian.net/browse/VE-635
Why in line 12:
mw.util.tooltipAccessKeyPrefix.replace( /-/g, ' + ' )
is used, and in line 13:
ve.ui.WikiaTrigger.static.accessKeyPrefix
but they seem to be that same thing for me.