made scripts more robust

scripts/docker-entrypoint.sh

@@ -3,10 +3,10 @@ trap "echo 'Stopping...'; exit 0" SIGTERM
 
 # source yocto
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-source "${SCRIPT_DIR}/setup-env.sh"
+source "${SCRIPT_DIR}/setup-env.sh" > /dev/null
 
 # add add source to all zsh instances
-echo "source \"${YOCTO_ROOT}/scripts/setup-env.sh\"" >> ~/.zshrc
+echo "source \"${YOCTO_ROOT}/scripts/setup-env.sh\" > /dev/null" >> ~/.zshrc
 
 # trap to keep container open in background
 /bin/zsh