ag-dired* does not copy a file if it contains space

[breadncup]

$ ag --version
ag version 2.1.0

Features:
+jit +lzma +zlib

Emacs version: GNU Emacs 26.1

I'm using: OSX

Step to reproduce:

1. M-x ag-dired
2. Move a cursor to a directory having a space ( e.g, '/Users/xx XX XX/a file.zip' )
3. Type 'C' to copy and put the destination directory
4. It fails to copy.

If you choose a directory which doesn't have a space, the copy works fine.

Looks ag-dired doesn't take care a path having a space.

[breadncup]

Nevermind.

This happens when "gls" is used which has been installed via the macport's coreutils ( sudo port install coreutils )

(setq insert-directory-program "/opt/local/bin/gls")

This causes the issue. When I remove above and use the default /bin/ls, the issue is not seen.

Thanks,