trivial: typo in kernel-parameters.txt

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Documentation/kernel-parameters.txt

@@ -933,7 +933,7 @@ and is between 256 and 4096 characters. It is defined in the file
 			1 -- enable informational integrity auditing messages.
 
 	ima_hash=	[IMA]
-			Formt: { "sha1" | "md5" }
+			Format: { "sha1" | "md5" }
 			default: "sha1"
 
 	ima_tcb		[IMA]