Fix typo

Author: glibas

.travis.yml

@@ -43,7 +43,7 @@ script:
   RELEASE_VERSION=$(curl --silent "https://api.github.com/repos/$1/releases/latest" | grep -Po '"tag_name": "\K.*?(?=")')
   if [ "$PACKAGE_VERSION" = "$RELEASE_VERSION" ]
   then
-    echo "Version PACKAGE_VERSION already released
+    echo "Version PACKAGE_VERSION already released"
   else
     node-pre-gyp-github publish
   fi