[compiler-rt] [NFCI] clarify that asan-*linux.cpp files affect *nix OS'es (PR #195565)

[Thurston Dang via llvm-commits]

================
@@ -8,7 +8,7 @@
 //
 // This file is a part of AddressSanitizer, an address sanity checker.
 //
-// Linux-specific details.
+// Linux-specific (and Unix/Unix-like) details.
----------------
thurstond wrote:

It seems redundant to mention "Linux-specific" instead of only "Unix/Unix-like". (OTOH, if the comment was the latter, then the file is clearly misnamed, which leads back to https://github.com/llvm/llvm-project/pull/132263).

https://github.com/llvm/llvm-project/pull/195565