fix(history): fix logic error in prompt for history -c (ohmyzsh#12472)

[Sargates]

Standards checklist:

• The PR title is descriptive.
• The PR doesn't replicate another PR which is already open.
• I have read the contribution guide and followed all the instructions.
• The code follows the code style guide detailed in the wiki.
• The code is mine or it's from somewhere with an MIT-compatible license.
• The code is efficient, to the best of my ability, and does not waste computer resources.
• The code is stable and I have tested it myself, to the best of my abilities.
• If the code introduces new aliases, I provide a valid use case for all plugin users down below.

Changes:

• Fixes logic error from 35a6725 when using history -c
• Prompting for confirmation causes history to be deleted when typing anything but explicitly n, N, or sending \n.
• New logic no longer proceeds with deletion when pressing wrong key and only deletes history when sending y or Y.

Other comments:

Copying @mcornella as he was assigned to the original issue

[robots4life]

How can I send a y to history -c in this alias alias hit='history -c && exit' with this change please ?

With this change so far now I have to confirm every time I run the alias, however I would like to not have to do that manually, thank you.

None of these work.

alias hity='history -c && exit'

alias confirm='printf "y\n" |'

alias hit='confirm hity'

alias hit='history -c && echo -e '\''y'\'' && exit'

alias hit='history -c; printf "y\n" | read -r; exit'