improve readability of stdio: fix indentation and remove trailing spaces

Change-Id: Ic51e58a7c75d20bf770dc0ebd7f97a338fbe0036
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
diff --git a/libc/stdio/freopen.c b/libc/stdio/freopen.c
index 414d810..59b2228 100644
--- a/libc/stdio/freopen.c
+++ b/libc/stdio/freopen.c
@@ -40,8 +40,8 @@
 #include <stdlib.h>
 #include "local.h"
 
-/* 
- * Re-direct an existing, open (probably) file to some other file. 
+/*
+ * Re-direct an existing, open (probably) file to some other file.
  * ANSI is written such that the original file gets closed if at
  * all possible, no matter what.
  */