C: optimized dir opening

src/utils.c

@@ -287,7 +287,12 @@ int count_dir(char* dir_path)
 		count++;
 	}
 
-	closedir(fd);
+	if (closedir(fd) < 0)
+	{
+		obi_set_errno(OBI_UTILS_ERROR);
+		obidebug(1, "\nError closing a directory");
+		return -1;
+	}
 
 	return count;
 }