[libc-commits] [libc] [libc][search] implement posix `lsearch` function (PR #114686)

[Nick Desaulniers via libc-commits]

https://github.com/nickdesaulniers commented:

Same comments apply to #114692 as here. Let's get that reviewed+landed, then revisit this PR.

https://github.com/llvm/llvm-project/pull/114686