conntrack: -L doesn't take a value, so don't discard one (same for -IUDGEFA)

The manual says
   COMMANDS
       These options specify the particular operation to perform.
       Only one of them can be specified at any given time.

       -L --dump
              List connection tracking or expectation table

So, naturally, "conntrack -Lo extended" should work,
but it doesn't, it's equivalent to "conntrack -L",
and you need "conntrack -L -o extended".
This violates user expectations (borne of the Utility Syntax Guidelines)
and contradicts the manual.

optarg is unused, anyway. Unclear why any of these were :: at all?

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/conntrack.c b/src/conntrack.c
index 0d71352..9fa4986 100644
--- a/src/conntrack.c
+++ b/src/conntrack.c
@@ -337,7 +337,7 @@ static struct option original_opts[] = {
 	{0, 0, 0, 0}
 };
 
-static const char *getopt_str = ":L::I::U::D::G::E::F::A::hVs:d:r:q:"
+static const char *getopt_str = ":LIUDGEFAhVs:d:r:q:"
 				"p:t:u:e:a:z[:]:{:}:m:i:f:o:n::"
 				"g::c:b:C::Sj::w:l:<:>::(:):";