doc: fix typo in length manpage

References: http://bugs.debian.org/551867
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

diff --git a/extensions/libxt_length.man b/extensions/libxt_length.man
index e324e031bf00d27fe8f26d6f546d3f5d0af85d9c..07b6ea683b0fe6ab9080126254111042a37f811a 100644 (file)
--- a/extensions/libxt_length.man
+++ b/extensions/libxt_length.man
@@ -1,5 +1,5 @@
 This module matches the length of the layer-3 payload (e.g. layer-4 packet)
-f a packet against a specific value
+of a packet against a specific value
 or range of values.
 .TP
 [\fB!\fP] \fB\-\-length\fP \fIlength\fP[\fB:\fP\fIlength\fP]