Description of problem:
Cannot start server with run.[bat|sh] script on IBM JDK due to unrecognised command-line option.

Steps to Reproduce:
1. Make sure you use IBM jdk
2. Navigate into $EAP_HOME/jboss-as/bin directory
3. run $ ./run.sh

Actual results:
<?xml version="1.0" ?>

<verbosegc xmlns="http://www.ibm.com/j9/verbosegc" version="R27_Java727_GA_20131114_0833_B175264_CMPRSS">

JVMJ9VM007E Command-line option unrecognised: -Xloggc:/home/pkremens/devel/jboss-eap-5.3/jboss-as/server/default/log/gc.log
</verbosegc>

Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

Expected results:
Server starts without any Error message.

This is regression against EAP 5.2.0.