cmdline: better description for --seccomp_log in nsjail.1

diff --git a/nsjail.1 b/nsjail.1
index 937b360..724d856 100644 (file)
--- a/nsjail.1
+++ b/nsjail.1
@@ -206,7 +206,7 @@ Path to file containing seccomp\-bpf policy (see kafel/)
 String with kafel seccomp\-bpf policy (see kafel/)
 .TP
 \fB\-\-seccomp_log\fR
-Use SECCOMP_FILTER_FLAG_LOG. Log all actions except SECCOMP_RET_ALLOW
+Use SECCOMP_FILTER_FLAG_LOG. Log all actions except SECCOMP_RET_ALLOW. Supported since kernel version 4.14
 .TP
 \fB\-\-cgroup_mem_max\fR VALUE
 Maximum number of bytes to use in the group (default: '0' \- disabled)