oli stat should show path as specified by users

[sarutak]

When we run oli stat for a path, the result show the path with the root omitted.

$ oli stat /path/to/file
path: path/to/file
size: 6307
type: file
last-modified: 2023-08-07 22:31:52.987908713 UTC

It's especially ugly when we run oli stat / because no component appears in the path: field.

$ oli stat /
path:
size: 264
type: dir
last-modified: 2023-08-08 15:56:44.372627670 UTC

On the other hand, Linux's stat show the File: field as specified by user.

$ stat /path/to/file
  File: /path/to/file
  Size: 6307      	Blocks: 16         IO Block: 4096   regular file
Device: 10304h/66308d	Inode: 1328196138  Links: 1
Access: (0664/-rw-rw-r--)  Uid: ( 1000/     kou)   Gid: ( 1000/     kou)
Access: 2023-08-10 04:48:01.320407752 +0900
Modify: 2023-08-08 07:31:52.987908713 +0900
Change: 2023-08-08 07:31:52.987908713 +0900
 Birth: -

$ stat ./myfile
  File: ./myfile
  Size: 6307      	Blocks: 16         IO Block: 4096   regular file
Device: 10304h/66308d	Inode: 1328196138  Links: 1
Access: (0664/-rw-rw-r--)  Uid: ( 1000/     kou)   Gid: ( 1000/     kou)
Access: 2023-08-10 04:48:01.320407752 +0900
Modify: 2023-08-08 07:31:52.987908713 +0900
Change: 2023-08-08 07:31:52.987908713 +0900
 Birth: -

I think it's nice to follow the behavior.