args4j-tools: remove extraneous '}' in pom.xml

Signed-off-by: John Keeping <john@metanate.com>
pom: generate OSGi metadata for args4j and args4j-tools

Signed-off-by: John Keeping <john@metanate.com>
Merge pull request #19 from johnkeeping/osgi-bundle

Generate OSGi metadata in JAR files