Scripted Groovey Question

[Pete P]

I need to append the reporter name after the summary on specific issues where the customer request type is "Access to Network Share".

This works to filter request type I need:
issue.get("customfield_10602")?.name == "Access to Network Share"

How can I combine above with 

issue.summary = issue.summary + ": " + issue.get("Reporter")

If not possible in groovey how would I do something like this with another app?