Warning fixes from Christos Zoulas

- shadowed variables
- signed/unsigned confusion
- const lossage
- incomplete structure initializations
- unused code

lib/wind/stringprep.c

@@ -111,7 +111,7 @@ wind_stringprep(const uint32_t *in, size_t in_len,
     return ret;
 }
 
-const static struct {
+static const struct {
     const char *name;
     wind_profile_flags flags;
 } profiles[] = {