Fix typos

src/rt/rust_log.cpp

@@ -24,7 +24,7 @@
  */
 static lock_and_signal _log_lock;
 /**
- * Indicates whether we are outputing to the console.
+ * Indicates whether we are outputting to the console.
  * Protected by _log_lock;
  */
 static bool _log_to_console = true;

src/rt/rust_signal.h

@@ -11,7 +11,7 @@
 #ifndef RUST_SIGNAL_H
 #define RUST_SIGNAL_H
 
-// Just an abstrict class that reperesents something that can be signalled
+// Just an abstract class that represents something that can be signalled
 class rust_signal {
 public:
     virtual void signal() = 0;