Remove unnecessary newline

write_message() expects messages to contain no newlines.

Author: ilammy

library/test/src/formatters/junit.rs

@@ -189,7 +189,7 @@ impl<T: Write> OutputFormatter for JunitFormatter<T> {
         compilation_time: f64,
     ) -> io::Result<()> {
         self.write_message(&format!(
-            "<report total_time=\"{total_time}\" compilation_time=\"{compilation_time}\"></report>\n",
+            "<report total_time=\"{total_time}\" compilation_time=\"{compilation_time}\"></report>",
         ))
     }
 }