Tell Maven the project is called "Error Prone", not "Maven parent POM"
Tell Maven the project is called "Error Prone", not "Maven parent POM"

In particular this makes the Javadocs look nicer. The existing docs at
errorprone.info/api/latest have a header reading
"Maven parent POM 2.3.3-SNAPSHOT API". After this change, that header
instead reads "Error Prone 2.3.2-SNAPSHOT API".

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=227041244

google/error-prone,cushon/error-prone,cushon/error-prone,cushon/error-prone,google/error-prone,cushon/error-prone