feat: timezone enhancement

build/bin/wfcsetup.sh

@@ -99,11 +99,10 @@ case "$1" in
         fi
         if grep -q "TZ=" ${org_env_file}; then
             sed "s|TZ=.*|TZ=${TIMEZONE}|" ${org_env_file} > $tmp_env_file
+            mv $tmp_env_file $org_env_file 
         else
             echo "TZ=${TIMEZONE}" >> ${org_env_file}
         fi
-        mv $tmp_env_file $org_env_file 
-
                 
         # replace nginx.conf gateway server ip and port