man: mention that the protocol command accumulates

As mentioned by @rusty-snake[1].

This amends commit 39654d016 ("adding netlink to --protocol list
(#4605)", 2022-01-21).

See also commit 75073e0e4 ("man: mention that private-bin and
private-etc are cumulative", 2022-01-22) and issue #4078.

[1] https://github.com/netblue30/firejail/pull/5042/files#r825477891

1 files changed, 1 insertions, 0 deletions

diff --git a/src/man/firejail.txt b/src/man/firejail.txt
index f9deaeaa4..228d0c91c 100644
--- a/src/man/firejail.txt
+++ b/src/man/firejail.txt
@@ -2167,6 +2167,7 @@ $ firejail \-\-profile.print=browser
 \fB\-\-protocol=protocol,protocol,protocol
 Enable protocol filter. The filter is based on seccomp and checks the first argument to socket system call.
 Recognized values: unix, inet, inet6, netlink, packet, and bluetooth. This option is not supported for i386 architecture.
+Multiple protocol commands are allowed and they accumulate.
 .br
 
 .br