- prev_commit=`(git -C "$toplevel" ls-tree "$from_commit" "$sm_path" | awk "{print \\$3}")`
- curr_commit=`(git -C "$toplevel" ls-tree "$to_commit" "$sm_path" | awk "{print \\$3}")`
- git --no-pager diff --name-only $prev_commit $curr_commit
-'; } | { test -t 1 && ${PAGER:-less} || cat -; }
+ prev_commit=`(git -C "$toplevel" rev-parse "$from_commit":"$sm_path")`
+ curr_commit=`(git -C "$toplevel" rev-parse "$to_commit":"$sm_path")`
+ "$prog_dir/$prog_name" $prev_commit $curr_commit
+'