[cli-ref] Support DeprecationWarning for version number

Bash variable expansion "${version##* }" doesn't match the char ")"
as "*". This patch add the process for "DeprecationWarning)" message.

Change-Id: If8e7dd047ea5e12487dc90f5a0fb7aeb4292ae13
Closes-Bug: #1565574

bin/doc-tools-update-cli-reference

@@ -94,4 +94,5 @@ git branch --list $branch && git branch -D $branch
 git checkout -b $branch
 mv ../output/${project}.rst "doc/cli-reference/source"
 version=$($project --version 2>&1)
+version=${version##*\)}
 git commit -a -m "[cli-ref] Update python-${project}client to ${version##* }"