sds: fix sds_printf() prototype in declaration
@@ -83,6 +83,6 @@ flb_sds_t flb_sds_cat_utf8(flb_sds_t *s, char *str, int len);
flb_sds_t flb_sds_increase(flb_sds_t s, size_t len);
flb_sds_t flb_sds_copy(flb_sds_t s, char *str, int len);
void flb_sds_destroy(flb_sds_t s);
-flb_sds_t flb_sds_printf(flb_sds_t s, const char *fmt, ...);
+flb_sds_t flb_sds_printf(flb_sds_t *s, const char *fmt, ...);
#endif
