Update copy when diff isn't auto-ignored
Update copy when diff isn't auto-ignored

As suggested by @lencioni. The new copy is slightly more compact and more in line with the mirror case.

Co-Authored-By: Joe Lencioni <1dd72cf724deaab5db236f616560fc7067b734e1@airbnb.com>
enduire/happo.io,enduire/happo.io