evaluate: better error notice when interval flag is not set on

Users get confused with the existing error notice, let's try a different one:

 # nft add element x y { 1.1.1.0/24 }
 Error: You must add 'flags interval' to your set declaration if you want to add prefix elements
 add element x y { 1.1.1.0/24 }
                   ^^^^^^^^^^

Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1380
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Phil Sutter <phil@nwl.cc>

0 files changed, 0 insertions, 0 deletions