Bug#712507: Bug in start script of gpsprune

[KISTER Samuel]

Package: gpsprune
Version: 15-1

At the start of gpsprune, I have following message :
"Erreur : impossible de trouver ou charger la classe principale 
java.net.preferIPv4Stack=true
zsh: exit 1     gpsprune"
(unable to load main class java.net.preferIPv4Stack=true)

this message is due to the command line in "/usr/bin/gpsprune"
'java $JAVA_OPTS -jar $PRUNEJAR "$@'

The $JAVA_OPTS should be removed in all three calls. The java VM loader 
is using it as normal classname, as it's not preceeded by an option switch.

Best regards.