doc: Fix typo in nat statement 'prefix' description

No point in repeating 'to map' here.

Fixes: 19d73ccdd39fa ("doc: add nat examples")
Signed-off-by: Phil Sutter <phil@nwl.cc>

diff --git a/doc/statements.txt b/doc/statements.txt
index 74af1d1a54e9a352930560b0f7dde313a2ee7f29..79a01384660f65d157b2f766f6402bdec1959e0f 100644 (file)
--- a/doc/statements.txt
+++ b/doc/statements.txt
@@ -438,7 +438,7 @@ Before kernel 4.18 nat statements require both prerouting and postrouting base c
 to be present since otherwise packets on the return path won't be seen by
 netfilter and therefore no reverse translation will take place.
 
-The optional *prefix* keyword allows to map to map *n* source addresses to *n*
+The optional *prefix* keyword allows to map *n* source addresses to *n*
 destination addresses.  See 'Advanced NAT examples' below.
 
 .NAT statement values