fixes

src/lib.rs

@@ -87,9 +87,10 @@ use rand::{thread_rng, Rng};
 /// `TempDir` destructor will silently ignore any errors in deleting
 /// the directory; to instead handle errors call [`TempDir::close`].
 ///
-/// Note that if the program exits before the `TempDir` destructor
-/// is run, such as via [`std::process::exit`] or by segfaulting,
-/// then the temporary directory will not be deleted.
+/// Note that if the program exits before the `TempDir` destructor is
+/// run, such as via [`std::process::exit`], by segfaulting, or by
+/// receiving a signal like `SIGINT`, then the temporary directory
+/// will not be deleted.
 /// 
 /// [`File`]: http://doc.rust-lang.org/std/fs/struct.File.html
 /// [`Path`]: http://doc.rust-lang.org/std/path/struct.Path.html