[chg] trim whitespace at end of line and append correct newline

src/main.rs

@@ -49,6 +49,17 @@ where
     write!(output, "{bytes}")
 }
 
+fn trim_end(line: &[u8]) -> usize {
+    let mut end = line.len();
+    for ch in line.iter().rev() {
+        if *ch != b'\r' && *ch != b'\n' && *ch != b'\t' {
+            break;
+        }
+        end -= 1;
+    }
+    end
+}
+
 fn run() -> LogtimesResult {
     let mut log_file = args().nth(1).map(|f| {
         File::options()
@@ -84,12 +95,16 @@ fn run() -> LogtimesResult {
         if buf[0] == 0xa {
             print_delete_line(&mut out)?;
             print_time_color(&mut out)?;
-            out.write_all(&linebuf)?;
+
+            let end = trim_end(&linebuf);
+            out.write_all(&linebuf[..end])?;
+            out.write_all(&[b'\r', b'\n'])?;
             out.flush()?;
 
             if let Some(ref mut f) = log_file {
                 print_time(f)?;
-                f.write_all(&linebuf)?;
+                f.write_all(&linebuf[..end])?;
+                f.write_all(&[b'\n'])?;
                 f.flush()?;
             };