[xsl] How to strip a single quote?

Subject: [xsl] How to strip a single quote?
From: "dvint@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 31 Jul 2024 19:41:17 -0000
I have content like this

<topic file="fs_task_with_collapse_in_tabs.dita"
	title="FORMAT: task inside a tab using collapsed sections"
chunk="child" tabtitle="'Collapse Sections'">

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