- 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}")`
+ prev_commit=`(git -C "$toplevel" rev-parse "$from_commit":"$sm_path")`
+ curr_commit=`(git -C "$toplevel" rev-parse "$to_commit":"$sm_path")`