Fix bug: Plugin not found in JepCommand-COUNTDISTINCT.jar

Issue#: CODE-2235

git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@21090 ef53c05b-3124-4d59-ae7d-fe3273f42be7

https://github.com/pcgen/pcgen/commit/4ef2d8a