conf: parser: iptables: capture all TCP flags to pkt_flag

The previous implementation would clobber and only remember one.
This field name is now a misnomer, pkt_flags or individual ones
for pkt_{cwr,ewe,urg...} might be better, but would break backwards
compat more substantially.

Signed-off-by: Hank Leininger <[email protected]>

Author: hlein

conf/parsers_extra.yaml

@@ -119,7 +119,7 @@ parsers:
          WINDOW=(?<proto_window_size>\d+)\s
          RES=(?<pkt_res>\w+)?\s
          (?<pkt_type>\w+)\s
-         ( (?<pkt_flag>\w+)? \s )*
+         (?<pkt_flag> (?:[A-Z]+\s)* )
          URGP=(?<pkg_urgency>\d)\s
         )?
        )?