@@ -159,7 +159,7 @@ The supported built-in functions are:
     systems expect for IPv4 interfaces. For example,
     `cidrnetmask("10.0.0.0/8")` returns `255.0.0.0`. Not applicable
     to IPv6 networks since CIDR notation is the only valid notation for
-    IPv4.
+    IPv6.
 
   * `cidrsubnet(iprange, newbits, netnum)` - Takes an IP address range in
     CIDR notation (like `10.0.0.0/8`) and extends its prefix to include an