refactor

- fix subtract with overflow

Author: Byron

src/plumbing/progress.rs

@@ -520,7 +520,7 @@ pub fn show_progress() -> anyhow::Result<()> {
 
         if let Some(width) = width {
             let icon_and_config_width = 55;
-            let width_after_config = width - icon_and_config_width;
+            let width_after_config = width.saturating_sub(icon_and_config_width);
             let usage = usage.to_string();
             let mut idx = 0;
             for word in usage.split(' ') {