specify in the man page that {cc} is a 2-letter ISA3166 code

diff --git a/doc/tor.1.txt b/doc/tor.1.txt
index a71b04fec7f21b4f414882ea9f5f2cec2af67f3d..389b9fac45eae0143ee406e979d565e034eba702 100644 (file)
--- a/doc/tor.1.txt
+++ b/doc/tor.1.txt
@@ -787,7 +787,8 @@ The following options are useful only for clients (that is, if
 
 [[ExcludeNodes]] **ExcludeNodes** __node__,__node__,__...__::
     A list of identity fingerprints, country codes, and address
-    patterns of nodes to avoid when building a circuit. Country codes must
+    patterns of nodes to avoid when building a circuit. Country codes are
+    2-letter ISA3166 codes, and must
     be wrapped in braces; fingerprints may be preceded by a dollar sign.
     (Example:
     ExcludeNodes ABCD1234CDEF5678ABCD1234CDEF5678ABCD1234, \{cc}, 255.254.0.0/8) +