"And then the source code got scrunched and I didn't have a complete listing." "If that scrunch had not happened, vi would have multiple windows, and I might h

"And then the source code got scrunched and I didn't have a complete listing." "If that scrunch had not happened, vi would have multiple windows, and I might have put in some programmability - but I don't know." "I actually used [be] to edit itself and scrunched the source code - sort of old home day, because we used to do that all the time." What does Bill mean by the word "scrunch" here? Is this some jargon lost to the ages?