[fusl] clang-format fusl

fusl/src/locale/duplocale.c

 #include <stdlib.h>
 #include <string.h>
 #include "locale_impl.h"
 #include "libc.h"
 
-locale_t __duplocale(locale_t old)
-{
-        locale_t new = malloc(sizeof *new);
-        if (!new) return 0;
-        if (old == LC_GLOBAL_LOCALE) old = &libc.global_locale;
-        *new = *old;
-        return new;
+locale_t __duplocale(locale_t old) {
+  locale_t new = malloc(sizeof *new);
+  if (!new)
+    return 0;
+  if (old == LC_GLOBAL_LOCALE)
+    old = &libc.global_locale;
+  *new = *old;
+  return new;
 }
 
 weak_alias(__duplocale, duplocale);