env.sh: fix help [1/1]

PD#SWPL-68240

Problem:
fix help

Solution:
fix help

Verify:
N/A

Signed-off-by: kelvin.zhang <kelvin.zhang@amlogic.com>
Change-Id: Ic47aaaec2e9e022633c030216de7b96ceb3efe6b
1 file changed