4aeeac1 rebase.sh: use 'git add' before 'git diff-index'

Authored and Committed by otaylor 3 years ago
    rebase.sh: use 'git add' before 'git diff-index'
    
    git diff-index only tells "potentially changed" - not "actually changed".
    Calling git add before git diff-index makes git update the index
    sufficiently to tell "actually changed".
    
        
file modified
+2 -2