[PATCH 2/7] docs: irq-affinity: Restore grep in example

[Karl Mehltretter]

The command is missing grep between the pipe and its pattern.

Fixes: 18404756765c ("genirq: Expose default irq affinity mask (take 3)")
Assisted-by: Codex:gpt-5.6-sol
Signed-off-by: Karl Mehltretter <kmehltretter@xxxxxxxxx>
---
 Documentation/core-api/irq/irq-affinity.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/core-api/irq/irq-affinity.rst b/Documentation/core-api/irq/irq-affinity.rst
index 9cb460cf60b61..671604c7395fe 100644
--- a/Documentation/core-api/irq/irq-affinity.rst
+++ b/Documentation/core-api/irq/irq-affinity.rst
@@ -53,7 +53,7 @@ Now lets restrict that IRQ to CPU(4-7).
 	--- hell ping statistics ---
 	2779 packets transmitted, 2777 packets received, 0% packet loss
 	round-trip min/avg/max = 0.1/0.5/585.4 ms
-	[root@moon 44]# cat /proc/interrupts |  'CPU\|44:'
+	[root@moon 44]# cat /proc/interrupts | grep 'CPU\|44:'
 		CPU0       CPU1       CPU2       CPU3      CPU4       CPU5        CPU6       CPU7
 	44:       1068       1785       1785       1783      1784       1069        1070       1069   IO-APIC-level  eth1
 
-- 
2.53.0