fix formatting

Author: hulxv

libc/src/stdlib/memalignment.h

@@ -9,8 +9,8 @@
 #ifndef LLVM_LIBC_SRC_STDLIB_MEM_ALIGNMENT_H
 #define LLVM_LIBC_SRC_STDLIB_MEM_ALIGNMENT_H
 
-#include "src/__support/macros/config.h"
 #include "src/__support/CPP/cstddef.h"
+#include "src/__support/macros/config.h"
 
 namespace LIBC_NAMESPACE_DECL {