confused stderr and stdout in doc comment

Author: krumelmonster

soundio/soundio.h

@@ -385,7 +385,7 @@ struct SoundIo {
 
     /// Optional: ALSA error callback.
     /// By default, libsoundio sets this to an empty function in order to
-    /// silence stdio messages from ALSA. You may override the behavior by
+    /// silence stderr messages from ALSA. You may override the behavior by
     /// setting this to `NULL` to reinstate ALSAs default behaviour of printing
     /// to stderr.
     void(* alsa_error_callback) (const char *file, int line, const char *function, int err, const char *fmt,...);