Don't wrap element content in a variable

Fix #6

Author: dmj

src/main/resources/content/transpile.xsl

@@ -454,7 +454,8 @@ SOFTWARE.
             <xsl:attribute name="select" select="@value"/>
           </xsl:when>
           <xsl:otherwise>
-            <xsl:apply-templates select="node()" mode="variable-content"/>
+            <xsl:attribute name="as">element()*</xsl:attribute>
+            <xsl:apply-templates select="*" mode="variable-content"/>
           </xsl:otherwise>
         </xsl:choose>
       </xsl:element>