Fix script interpreter name.

[MG2R]

Fixes what is probably just a simple typo.

[MG2R]

Seems I didn't have my coffee yet in that first commit.

[fuhry]

Hey, thanks for the PR. I cross-checked with arch's cryptsetup package and that hook also uses #!/usr/bin/ash as the shebang. This would seem to make sense, because:

• initcpio uses busybox, and busybox's interpreter is typically named ash
• Arch has moved all binaries from /sbin, /bin and /usr/sbin into /usr/bin, and it would make sense if they did this for initcpio as well

So I think this shebang is actually correct. I'm not aware of any specific recommendations, however, and I don't think it matters anyway. Since all the script does is declare a function, it's clear that it's intended to be sourced rather than executed directly, and the shebang is probably just there as a hint to editors' syntax highlighting.

Your thoughts?

[MG2R]

Yeah, you're completely right. I shouldn't create pull requests/do code reviews in the morning before my coffee ;)

A quick google for '/usr/bin/ash' returned nothing but bash, so I went for it.