Fixed typo in travis config

Author: weierophinney

.travis.yml

@@ -51,7 +51,7 @@ before_install:
   - if [[ $EXECUTE_TEST_COVERALLS == 'true' ]]; then composer require --dev --no-update satooshi/php-coveralls ; fi
   - if [[ $ZEND_EVENTMANAGER_VERSION != '' ]]; then composer require --no-update "zendframework/zend-eventmanager:$ZEND_EVENTMANAGER_VERSION" ; fi
   - if [[ $ZEND_EVENTMANAGER_VERSION == '' ]]; then composer require --no-update "zendframework/zend-eventmanager:^3.0" ; fi
-  - if [[ $ZEND_SERVICEMANAGER_VERSION != '' ]]; then composer require --dev --no-update "zendframework/zend-servicemanager:$ZEND_SERIVCEMANAGER_VERSION" ; fi
+  - if [[ $ZEND_SERVICEMANAGER_VERSION != '' ]]; then composer require --dev --no-update "zendframework/zend-servicemanager:$ZEND_SERVICEMANAGER_VERSION" ; fi
   - if [[ $ZEND_SERVICEMANAGER_VERSION == '' ]]; then composer require --dev --no-update "zendframework/zend-servicemanager:^3.0.3" ; fi
   - if [[ $ZEND_SERVICEMANAGER_VERSION == '' ]]; then composer remove --dev --no-update zendframework/zend-mvc ; fi