xt: Fix fallback printing for extensions matching keywords

Yet another Bison workaround: Instead of the fancy error message, an
incomprehensible syntax error is emitted:

| # iptables-nft -A FORWARD -p tcp -m osf --genre linux
| # nft list ruleset | nft -f -
| # Warning: table ip filter is managed by iptables-nft, do not touch!
| /dev/stdin:4:29-31: Error: syntax error, unexpected osf, expecting string
| 		meta l4proto tcp xt match osf counter packets 0 bytes 0
| 		                          ^^^

Avoid this by quoting the extension name when printing:

| # nft list ruleset | sudo ./src/nft -f -
| # Warning: table ip filter is managed by iptables-nft, do not touch!
| /dev/stdin:4:20-33: Error: unsupported xtables compat expression, use iptables-nft with this ruleset
| 		meta l4proto tcp xt match "osf" counter packets 0 bytes 0
| 		                 ^^^^^^^^^^^^^^

Fixes: 79195a8cc9e9d ("xt: Rewrite unsupported compat expression dumping")
Fixes: e41c53ca5b043 ("xt: Fall back to generic printing from translation")
Signed-off-by: Phil Sutter <phil@nwl.cc>

0 files changed, 0 insertions, 0 deletions