bugfix: Allow dust to work on low width terminal

Do not assume the min width is 80 (unless on windows).

src/main.rs

@@ -64,6 +64,7 @@ fn get_height_of_terminal() -> usize {
     }
 }
 
+#[cfg(windows)]
 fn get_width_of_terminal() -> usize {
     // Windows CI runners detect a very low terminal width
     if let Some((Width(w), Height(_h))) = terminal_size() {
@@ -73,6 +74,15 @@ fn get_width_of_terminal() -> usize {
     }
 }
 
+#[cfg(not(windows))]
+fn get_width_of_terminal() -> usize {
+    if let Some((Width(w), Height(_h))) = terminal_size() {
+        w as usize
+    } else {
+        DEFAULT_TERMINAL_WIDTH
+    }
+}
+
 fn get_regex_value(maybe_value: Option<&str>) -> Option<Regex> {
     match maybe_value {
         Some(v) => match Regex::new(v) {