[PATCH] Documentation: dynamic-debug-howto: fix example

[Martin Kepplinger]

dynamic debug is "expecting pairs of match-spec <value>" so the example
for all files of which the paths include "usb" there is "file" missing.

Signed-off-by: Martin Kepplinger <martin.kepplinger@xxxxxxx>
---
 Documentation/admin-guide/dynamic-debug-howto.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst
index 6c04aea8f4cd..b119b8277b3e 100644
--- a/Documentation/admin-guide/dynamic-debug-howto.rst
+++ b/Documentation/admin-guide/dynamic-debug-howto.rst
@@ -347,7 +347,7 @@ Examples
 				<debugfs>/dynamic_debug/control
 
   // enable messages in files of which the paths include string "usb"
-  nullarbor:~ # echo -n '*usb* +p' > <debugfs>/dynamic_debug/control
+  nullarbor:~ # echo -n 'file *usb* +p' > <debugfs>/dynamic_debug/control
 
   // enable all messages
   nullarbor:~ # echo -n '+p' > <debugfs>/dynamic_debug/control
-- 
2.30.1