Satisfy Spell Checker

compose/bin/setup-composer-auth

@@ -11,7 +11,7 @@ if [ -n "$PUBLIC_KEY" ] && [ -n "$PRIVATE_KEY" ]; then
     exit 0
 fi
 
-if [ $IS_COMPOSER_ON_HOST ]; then
+if [ "$IS_COMPOSER_ON_HOST" ]; then
     PUBLIC_KEY="$(composer config --global $MAGENTO_USERNAME_PROP 2>/dev/null)"
     PRIVATE_KEY="$(composer config --global $MAGENTO_PASSWORD_PROP 2>/dev/null)"
 fi

compose/bin/setup-grunt

@@ -60,5 +60,5 @@ bin/npm install ajv@^5.0.0 --save
 bin/npm install
 bin/magento cache:clean
 bin/grunt clean
-bin/grunt exec:$THEME
-bin/grunt less:$THEME
+bin/grunt exec:"$THEME"
+bin/grunt less:"$THEME"