improve readability of stdlib: fix indentation and remove trailing spaces

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>

Change-Id: I7dd90a0816b5376ffc1de4499d56935e0bd574a1
diff --git a/libc/stdlib/wchar.c b/libc/stdlib/wchar.c
index d805333..0bbdaa9 100644
--- a/libc/stdlib/wchar.c
+++ b/libc/stdlib/wchar.c
@@ -387,7 +387,7 @@
 
 int wctob(wint_t c)
 {
-  return c;
+    return c;
 }
 
 wctype_t wctype(const char *property)