fix typo in net/ipv4/ip_fragment.c

Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 74046ef..8ce00d3 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -565,7 +565,7 @@
 		} else {
 			struct sk_buff *free_it = next;
 
-			/* Old fragmnet is completely overridden with
+			/* Old fragment is completely overridden with
 			 * new one drop it.
 			 */
 			next = next->next;