Copy of https://bugzilla.redhat.com/show_bug.cgi?id=1064763

Description of problem:
I am unable to start standalone server with --debug [PORT] argument on Solaris 10 hosts.

SunOS 5.10 Generic_142910-17 i86pc i386 i86pc
[user@host bin]$ ./standalone.sh --debug
./standalone.sh: cannot shift
[user@host bin]$ ./standalone.sh --debug 8787
./standalone.sh: bad substitution

SunOS 5.10 Generic_118833-36 sun4v sparc SUNW,Sun-Fire-T1000
[user@host bin]$ ./standalone.sh --debug
./standalone.sh: cannot shift
[user@host bin]$ ./standalone.sh --debug 8787
./standalone.sh: bad substitution

Version-Release number of selected component (if applicable):
EAP 6.3.0.DR0

How reproducible:
Always

Steps to Reproduce:
1. Navigate to $JBOSS_HOME/bin and run: ./standalone.sh --debug [PORT]

Actual results:
Server fails to start

Expected results:
Server will start with debugger attached to $PORT (8787 if no $PORT)