help: document -A option

It's one of the parameters used by default in LuCI, so it should be
included in the help output.

Signed-off-by: Karl Palsson <karlp@etactica.com>

diff --git a/main.c b/main.c
index 219e37e9c349b6873bd2afccd302d4c345a17ec7..822c74868708173cebad4f56add3063922bce94e 100644 (file)
--- a/main.c
+++ b/main.c
@@ -165,6 +165,7 @@ static int usage(const char *name)
                "       -t seconds      CGI, Lua and UBUS script timeout in seconds, default is 60\n"
                "       -T seconds      Network timeout in seconds, default is 30\n"
                "       -k seconds      HTTP keepalive timeout\n"
+               "       -A seconds      TCP keepalive timeout, default is unset\n"
                "       -d string       URL decode given string\n"
                "       -r string       Specify basic auth realm\n"
                "       -m string       MD5 crypt given string\n"