Fixed log statement when expanding Tomcat.

[violetagg]

Hi,

In TomEE BP, the TomEE Instance inherits Tomcat Instance [1].

When one invokes "cf push -b https://github.com/cloudfoundry-community/tomee-buildpack"
The following will appear in the command line:

-----> Downloading Tomee Instance 1.7.2 from https://download.run.pivotal.io/tomee/tomee-1.7.2.tar.gz
       Expanding Tomcat to .java-buildpack/tomee

As you can see there is "Expanding Tomcat" which is not correct when using TomEE BP.

With this change I would like to change the log statement in Java BP in a way that even when inherited Tomcat Instance will print the correct name i.e.:

-----> Downloading Tomee Instance 1.7.2 from https://download.run.pivotal.io/tomee/tomee-1.7.2.tar.gz
       Expanding Tomee Instance to .java-buildpack/tomee

What do you think?

Regards,
Violeta
[1] https://github.com/cloudfoundry-community/tomee-buildpack/blob/master/lib/java_buildpack/container/tomee/tomee_instance.rb

[cfdreddbot]

Hey violetagg!

Thanks for submitting this pull request! I'm here to inform the recipients of the pull request that you've already signed the CLA.