patch apply command does not show list of all modified files that are in conflict

Issue

• patch apply command does not show list of all modified files that are in conflict in EAP 6.4.18.
• When applying CP18 from CP13, it shows modified file conflicts just for one file at a time, even there is more than one file is modified.

[standalone@localhost:9999 /] patch apply /home/jboss-eap-6.4.18-patch.zip 
Conflicts detected: bin/jboss-cli.sh
Use the --override-all, --override=[] or --preserve=[] arguments in order to resolve the conflict.
[standalone@localhost:9999 /] patch apply /home/jboss-eap-6.4.18-patch.zip --preserve=bin/jboss-cli.sh
Conflicts detected: bin/standalone.conf 
Use the --override-all, --override=[] or --preserve=[] arguments in order to resolve the conflict.
[standalone@localhost:9999 /] patch apply /home/jboss-eap-6.4.18-patch.zip --preserve=bin/jboss-cli.sh,bin/standalone.conf 
{
    "outcome" : "success",
    "response-headers" : {
        "operation-requires-restart" : true,
        "process-state" : "restart-required"
    }
}