Fixes a typo in the code comments of the queue subsystem.
* The offset can be positive or negative, and an offset of 0 puts it in the
* middle of this range (~ 8 min). Note that this also means if the adjusted
* timestamp wraps around, the request will be misinterpreted as being of
- * the higest priority for that priority class.
+ * the highest priority for that priority class.
*
* This function must be called by the stream itself, so in the context of
* process_stream.