[lib] Fix typo and amend restrict qualifier

This removes an extraneous ',' in the generated dlfcn header.

This also adds `__restrict` to `dladdr`'s declaration per POSIX. The
`restrict` C standard keyword is removed from dlinfo.cpp/dlinfo.h
(but note that the dlinfo's declaration in dlfcn.h still annoates
__restrict in the decl).

Author: Caslyn

libc/include/dlfcn.yaml

@@ -46,7 +46,7 @@ enums:
     standards:
       - gnu
     value: 2
-  - name: RTLD_DI_CONFIGADDR,
+  - name: RTLD_DI_CONFIGADDR
     standards:
       - gnu
     value: 3
@@ -127,5 +127,5 @@ functions:
       - POSIX
     return_type: int
     arguments:
-      - type: const void *
-      - type: Dl_info *
+      - type: const void *__restrict
+      - type: Dl_info *__restrict

libc/src/dlfcn/dlinfo.cpp

@@ -15,8 +15,7 @@
 namespace LIBC_NAMESPACE_DECL {
 
 // TODO: https://github.com/llvm/llvm-project/issues/149911
-LLVM_LIBC_FUNCTION(int, dlinfo,
-                   (void *restrict handle, int request, void *restrict info)) {
+LLVM_LIBC_FUNCTION(int, dlinfo, (void *handle, int request, void *info)) {
   return -1;
 }
 

libc/src/dlfcn/dlinfo.h

@@ -13,7 +13,7 @@
 
 namespace LIBC_NAMESPACE_DECL {
 
-int dlinfo(void *restrict, int, void *restrict);
+int dlinfo(void *, int, void *);
 
 } // namespace LIBC_NAMESPACE_DECL