TT#14008 use const char in str_init_dup

Change-Id: I57246916f472d4d2f61611c401e2324b97329bb6

lib/str.h

@@ -61,7 +61,7 @@ INLINE str *str_init_len(str *out, char *s, size_t len);
 INLINE str *str_init_len_assert_len(str *out, char *s, size_t buflen, size_t len);
 #define str_init_len_assert(out, s, len) str_init_len_assert_len(out, s, sizeof(s), len)
 /* inits a str object from a regular string and duplicates the contents. returns out */
-INLINE str *str_init_dup(str *out, char *s);
+INLINE str *str_init_dup(str *out, const char *s);
 INLINE str *str_init_dup_str(str *out, const str *s);
 INLINE void str_free_dup(str *out);
 /* returns new str object with uninitialized buffer large enough to hold `len` characters (+1 for null byte) */
@@ -232,7 +232,7 @@ INLINE str *str_init_len_assert_len(str *out, char *s, size_t buflen, size_t len
 	assert(buflen >= len);
 	return str_init_len(out, s, len);
 }
-INLINE str *str_init_dup(str *out, char *s) {
+INLINE str *str_init_dup(str *out, const char *s) {
 	out->s = s ? strdup(s) : NULL;
 	out->len = s ? strlen(s) : 0;
 	return out;