fix: was not compatible with ``busybox`` version of ``readlink``.

This will be required in a docker container based on alpine for
instance.

bin/compose

@@ -2150,7 +2150,7 @@ get_default_project_name() {
     fi
     compose_yml_location="$(get_compose_yml_location)" || return 1
     if [ "$compose_yml_location" ]; then
-        if normalized_path=$(readlink -e "$compose_yml_location"); then
+        if normalized_path=$(readlink -f "$compose_yml_location"); then
             echo "$(basename "$(dirname "$normalized_path")")"
             return 0
         fi