jboss-server-migration.sh replaces 	 (tab) with space in standalone.xml
Issue
In migrate standalone.xml from EAP 7.0 to 7.2, jboss-server-migration.sh outputs unexpected pattern attribute that is replaced tab with space as below:
input standalone.xml:
<access-log pattern="%a	%A:%p	%{time,yyyy-MM-dd HH:mm:ss}	%m	%U	%s	%b	%T"/>
result:
<access-log pattern="%a %A:%p %{time,yyyy-MM-dd HH:mm:ss} %m %U %s %b %T"/>
expected (same as input):
<access-log pattern="%a	%A:%p	%{time,yyyy-MM-dd HH:mm:ss}	%m	%U	%s	%b	%T"/>
Environment
- Red Hat JBoss Enterprise Application Platform (EAP)
- 7.2
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