manage, fix newline escaping.

bin/manage.sh

@@ -151,8 +151,8 @@ if [[ -n $up || -n $down || -n $build || -n $pull || -n $maintenance ]]; then
 		pwd
 
 		# Ensure env file exists so that all compose variables are populated.
-		if [[ -e "./example.env" && ! -e "./.env" &&
-			( -f "docker-compose.yml" || -f "compose.yml" ]]; then
+		if [[ -f "./example.env" && ! -f "./.env" \
+				&& ( -f "docker-compose.yml" || -f "compose.yml" ]]; then
 			echo "WARNING: .env file was not found, copying example as placeholder."
 			cp -v example.env .env
 		fi