[MCHECKSTYLE-422] Print absolute paths

[jira-importer]

Delany opened MCHECKSTYLE-422 and commented

When the check goal prints a violation to the console it gives the relative path

[ERROR] src/main/java/...

Off the top of my head all other plugins give absolute paths.

Absolute paths are necessary when running the build in IntelliJ's terminal. An absolute path is recognized as such and one can simply click it to open the file.

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Affects: 3.2.0