os/include/sched.h : Fix typo
runing -> running
@@ -182,7 +182,7 @@ int task_create(FAR const char *name, int priority, int stack_size, main_t entry
* a wrapper around the internal, task_terminate function.
*
* The logic in this function only deletes non-running tasks. If the 'pid'
- * parameter refers to the currently runing task, then processing is
+ * parameter refers to the currently running task, then processing is
* redirected to exit(). This can only happen if a task calls task_delete()
* in order to delete itself.
*
