comment fix

Author: ricci009

src/tools/tidy/src/pal.rs

@@ -34,7 +34,7 @@ use std::path::Path;
 
 use crate::walk::{filter_dirs, walk};
 
-// Paths that may contain platform-specific code.Is there any comment needed here for this?
+// Paths that may contain platform-specific code.
 const EXCEPTION_PATHS: &[&str] = &[
     "library/windows_targets",
     "library/panic_abort",