audit: whitespace fix in kernel-parameters.txt

Fixup caught by checkpatch.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e81e1d0..a068591 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -474,7 +474,7 @@
 			    RAM until it is fully enabled by the userspace
 			    auditd.
 			Default: unset
-			
+
 	audit_backlog_limit= [KNL] Set the audit queue size limit.
 			Format: <int> (must be >=0)
 			Default: 64