Fix example

Author: usbalbin

examples/lm3s6965/examples/spawn_local.rs

@@ -5,7 +5,7 @@ use panic_semihosting as _;
 
 #[rtic::app(device = lm3s6965, dispatchers = [SSI0])]
 mod app {
-    use cortex_m_semihosting::hprintln;
+    use cortex_m_semihosting::{debug, hprintln};
     use super::*;
 
     #[shared]