static int use_size_cache;
-static int diff_detect_rename_default = 0;
+static int diff_detect_rename_default;
static int diff_rename_limit_default = -1;
-static int diff_use_color_default = 0;
+static int diff_use_color_default;
/* "\033[1;38;5;2xx;48;5;2xxm\0" is 23 bytes */
static char diff_colors[][24] = {