iproute: typo in ip manpage

Fix spelling (s/commoand/command/) in ip(8) manpage.

Spotted by dann frazier <dannf@hp.com> - http://bugs.debian.org/539830

man/man8/ip.8

@@ -1092,7 +1092,7 @@ but label is not required.
 .SS ip addrlabel list - list address labels
 the command show contents of address labels.
 .SS ip addrlabel flush - flush address labels
-the commoand flushes the contents of address labels and it does not restore default settings.
+the command flushes the contents of address labels and it does not restore default settings.
 .SH ip neighbour - neighbour/arp tables management.
 
 .B neighbour