[LTP] [PATCH 1/1] tst_net.sh: Print help ASAP

[Petr Vorel]

This also allows not requiring printing help with root when using
TST_USE_NETNS:

    $ PATH="/opt/ltp/testcases/bin:$PATH" gre02.sh -h
    gre02 1 TCONF: Must be super/root for this test!

And with root setup was unnecessary things done just to print help:

    # PATH="/opt/ltp/testcases/bin:$PATH" gre02.sh -h
    gre02 1 TINFO: initialize 'lhost' 'ltp_ns_veth2' interface
    gre02 1 TINFO: add local addr 10.0.0.2/24
    gre02 1 TINFO: add local addr fd00:1:1:1::2/64
    gre02 1 TINFO: initialize 'rhost' 'ltp_ns_veth1' interface
    gre02 1 TINFO: add remote addr 10.0.0.1/24
    gre02 1 TINFO: add remote addr fd00:1:1:1::1/64
    gre02 1 TINFO: Network config (local -- remote):
    gre02 1 TINFO: ltp_ns_veth2 -- ltp_ns_veth1
    gre02 1 TINFO: 10.0.0.2/24 -- 10.0.0.1/24
    gre02 1 TINFO: fd00:1:1:1::2/64 -- fd00:1:1:1::1/64
    Usage: /opt/ltp/testcases/bin/gre02.sh [-6]
    OPTIONS
    -6      IPv6 tests
    -h      Prints this help
    -i n    Execute test n times

Now just help is printed, work for unprivileged user:

    $ PATH="/opt/ltp/testcases/bin:$PATH" gre02.sh -h
    Usage: /opt/ltp/testcases/bin/gre02.sh [-6]
    OPTIONS
    -6      IPv6 tests
    -h      Prints this help
    -i n    Execute test n times

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
 testcases/lib/tst_net.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testcases/lib/tst_net.sh b/testcases/lib/tst_net.sh
index 4dc0fca926..047686dc39 100644
--- a/testcases/lib/tst_net.sh
+++ b/testcases/lib/tst_net.sh
@@ -937,7 +937,7 @@ tst_default_max_pkt()
 	echo "$((mtu + mtu / 10))"
 }
 
-[ -n "$TST_NET_SKIP_VARIABLE_INIT" ] && return 0
+[ -n "$TST_PRINT_HELP" -o -n "$TST_NET_SKIP_VARIABLE_INIT" ] && return 0
 
 # Management Link
 [ -z "$RHOST" ] && TST_USE_NETNS="yes"
-- 
2.34.1