Make sh replacements overwrite replaced commands

Previously we only installed shell replacements, but it would be nice
if our drop-in replacements could replace the command so that we don't
need to remember to use them separately

Change-Id: Ie670c620b42ea4b4bf44bc28efb1ea936102fa60
Reviewed-on: https://git.clicks.codes/c/Chimera/NixFiles/+/415
Tested-by: Samuel Shuert <coded@clicks.codes>
Reviewed-by: Skyler Grey <minion@clicks.codes>
1 file changed