Fix check for function .zinit-setup-plugin-dir

[ngocphamm]

Description

Typo was made to this line, so the function contains spaces around the dashes. The script now cannot source zinit-install.zsh.

Motivation and Context

Related Issue(s)

Usage examples

How Has This Been Tested?

Manual

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[ngocphamm]

@vladdoster Actually, my bad, but this doesn't work just yet 😦

(($ + functions[.zinit-setup-plugin-dir])) doesn't seem to be a valid check here. I'm not so sure what this is doing either I tried to search to gain more knowledge about shell/zsh but no luck understanding it yet.

My guess would be we want to check if the function .zinit-setup-plugin-dir exists before sourcing zinit-install.zsh, but that doesn't work here yet, even though I can confirm the following

1. Execute echo $functions[.zinit-setup-params] prints out the method
2. Execute echo $functions[.zinit-setup-plugin-dir] prints out blank

Both commands has exit code of 0 so might be that's the reason why.

Just a shot in the dark, I've tried changing it to the following without success

1. (( type -f .zinit-setup-plugin-dir 2>/dev/null ))
2. ( type -f .zinit-setup-plugin-dir 2>/dev/null )
3. type -f .zinit-setup-plugin-dir 2>/dev/null
4. (($functions[.zinit-setup-plugin-dir]))