1. Save a backup copy of the following file:
C:\Program Files\XMetaL 5.1\Author\DITA\XACs\task\task_ditabase.ctm
2. Open it in any text editor.
3. Find the line of code that looks like this (below). In my copy of XMetaL it's at line# 1769. (This is XMetaL Author Enterprise 5.1, but I fiddle all the time and I don't remember if I have made other changes to my CTM before.) Also note that this is a single line of text:
<MiniTemplate><![CDATA[<step><cmd><?xm-replace_text Step?></cmd><stepresult><?xm-replace_text Step Result?></stepresult></step>]]></MiniTemplate>
4. Change it to this:
<MiniTemplate><![CDATA[<step><cmd><?xm-replace_text Step?></cmd></step>]]></MiniTemplate>
5. Restart XMetaL.
You'll probably have to re-do this procedure whenever you upgrade your version of XMetaL, as the installer will probably overwrite it.