go1.22 and up now produce a unique variable in loops, tehrefore no longer
requiring to capture the variable manually;
cli/command/image/tree.go:59:4: The copy of the 'for' variable "im" can be deleted (Go 1.22+) (copyloopvar)
im := im
^
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>