[libc-commits] [libc] [libc] Add `dlfcn.h` placeholder (PR #97501)

[via libc-commits]

================
@@ -17,6 +17,12 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.ctype.tolower
     libc.src.ctype.toupper
 
+    # dlfcn.h entrypoints
+    libc.src.dlfcn.dlopen
+    libc.src.dlfcn.dlsym
+    libc.src.dlfcn.dlclose
+    libc.src.dlfcn.dlerror
----------------
overmighty wrote:

Nit: sorting.

```suggestion
    libc.src.dlfcn.dlclose
    libc.src.dlfcn.dlerror
    libc.src.dlfcn.dlopen
    libc.src.dlfcn.dlsym
```

https://github.com/llvm/llvm-project/pull/97501