genirq: Fix kernel doc indentation

Fixes: 61377ec1 ("genirq: Clarify documentation for request_threaded_irq()")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

kernel/irq/manage.c

@@ -2107,9 +2107,7 @@ const void *free_nmi(unsigned int irq, void *dev_id)
  *
  *	IRQF_SHARED		Interrupt is shared
  *	IRQF_TRIGGER_*		Specify active edge(s) or level
- *	IRQF_ONESHOT		Do not unmask interrupt line until
- *				thread_fn returns
- *
+ *	IRQF_ONESHOT		Run thread_fn with interrupt line masked
  */
 int request_threaded_irq(unsigned int irq, irq_handler_t handler,
 			 irq_handler_t thread_fn, unsigned long irqflags,