Add a preview to _forgit_clean

[sandr01d]

Check list

• I have performed a self-review of my code
• I have commented my code in hard-to-understand areas
• I have made corresponding changes to the documentation

Description

gclean is the only command that does not display a preview. I sometimes find myself exiting gclean just to check the content of a file before deleting it. Being able to have a last peek at a file before removing it does sound like a good idea in general to me.

Type of change

• Bug fix
• New feature
• Refactor
• Breaking change
• Documentation change

Test environment

• Shell
  • bash
  • zsh
  • fish
• OS
  • Linux
  • Mac OS X
  • Windows
  • Others:

[carlfriedrich]

Good idea, works for me!

[sandr01d]

FYI: I've added a preview for directories now as well (before this you'd see an unwanted error message when trying to preview a directory). Looks like this when tree is installed

Otherwise like this:

Feel free to give this another review if you like. Will keep testing this for a few days.