[fusl] clang-format fusl

fusl/src/stdio/fileno.c

 #include "stdio_impl.h"
 
-int fileno(FILE *f)
-{
-        /* f->fd never changes, but the lock must be obtained and released
-         * anyway since this function cannot return while another thread
-         * holds the lock. */
-        FLOCK(f);
-        FUNLOCK(f);
-        return f->fd;
+int fileno(FILE* f) {
+  /* f->fd never changes, but the lock must be obtained and released
+   * anyway since this function cannot return while another thread
+   * holds the lock. */
+  FLOCK(f);
+  FUNLOCK(f);
+  return f->fd;
 }
 
 weak_alias(fileno, fileno_unlocked);