Fixed RPM build

[alexshadow007]

This PR resolves following error

Play server process ID is 13339
Exception in thread "main" java.io.FileNotFoundException: /usr/share/kafka-manager/RUNNING_PID (Permission denied)
        at java.io.FileOutputStream.open(Native Method)
        at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
        at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
        at play.core.server.NettyServer$$anonfun$createServer$1.apply(NettyServer.scala:242)
        at play.core.server.NettyServer$$anonfun$createServer$1.apply(NettyServer.scala:230)
        at scala.Option.map(Option.scala:146)
        at play.core.server.NettyServer$.createServer(NettyServer.scala:230)
        at play.core.server.NettyServer$$anonfun$main$3.apply(NettyServer.scala:289)
        at play.core.server.NettyServer$$anonfun$main$3.apply(NettyServer.scala:284)
        at scala.Option.map(Option.scala:146)
        at play.core.server.NettyServer$.main(NettyServer.scala:284)
        at play.core.server.NettyServer.main(NettyServer.scala)

[yahoocla]

CLA is valid!