"Blue Jay Way"

This morning I was thinking about something I noticed in "Blue Jay Way" about a year ago but which I never wrote about (I was reminded of it because I recently found a similar feature in Badfinger's "Suitcase," which George Harrison produced).  The specific technical explanation is beyond my skill level, but I think some change in the meter or in the syllabic stress causes the repeated "Don't be long" at the end to morph into "Don't belong."