Merge pull request #5390 from abbradar/nixos-isntall

nixos-install: fix -I flag

Changed files
+1 -2
nixos
modules
installer
+1 -2
nixos/modules/installer/tools/nixos-install.sh
···
case "$i" in
-I)
given_path="$1"; shift 1
-
absolute_path=$(readlink -m $given_path)
-
extraBuildFlags+=("$i" "/mnt$absolute_path")
+
extraBuildFlags+=("$i" "$given_path")
;;
--root)
mountPoint="$1"; shift 1