env.sh: a minor fix [1/1]

PD#SWPL-67525

Problem:
a minor fix

Solution:
a minor fix

Verify:
ad401_a113l

Signed-off-by: Kelvin Zhang <kelvin.zhang@amlogic.com>
Change-Id: I46464a7e6d023d528670333effb36a2174d170df
diff --git a/env.sh b/env.sh
index 4ddcdd3..037f30d 100755
--- a/env.sh
+++ b/env.sh
@@ -60,7 +60,7 @@
 if [ -n "$1" ]; then
 	if [ $1 == "-h" ]; then
 		usage
-		return 0
+		exit 0
 	else
 		PROJECT="$1 $2 $3 $4"
 	fi