trivial: fix typos/grammar errors in Kconfig texts

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/net/Kconfig b/net/Kconfig
index ec93e7e..ce77db4fc 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -140,7 +140,7 @@
 	default y
 	help
 	  If you say Y here you can select between all the netfilter modules.
-	  If you say N the more ununsual ones will not be shown and the
+	  If you say N the more unusual ones will not be shown and the
 	  basic ones needed by most people will default to 'M'.
 
 	  If unsure, say Y.