make it take size after all

include/utils.h

@@ -1,5 +1,5 @@
-#ifndef UTILS_H
-#define UTILS_H
+#ifndef LINUXSMARTIE_UTILS_H
+#define LINUXSMARTIE_UTILS_H
 
 #include <stdbool.h>
 #include <time.h>
@@ -31,7 +31,7 @@ char *pretty_bytes(uint64_t bytes, int8_t start_suffix, char *buf, size_t bufsz)
 
 bool file_exists(const char *path);
 
-int get_hwmon_dir(char *path);
+int get_hwmon_dir(char *path, size_t bufsz);
 
 size_t read_file(const char *path, char *buffer, size_t n);