Maven will set manifest values to illegal multiline values.

This module's POM has this multiline <description> attribute,
which if included directly in the manifest will make a corrupt
manifest.

To use this test, package this POM and then inspect
the manifest: Maven will use this value literally as the Jar's
"Specification Title", and the Jar will be corrupt.
Attempt to lauch the Jar, and the launcher should raise an
exception also.