With XSLT 2.0 you can use
Code:
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="2.0">
<xsl:output method="text"/>
<xsl:template match="/">
<xsl:value-of
select="POLICIES/POLICY/POLINPUTS/FLD"
separator=", "/>
</xsl:template>
</xsl:stylesheet>
With XSLT 1.0 you can use
Code:
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:output method="text"/>
<xsl:template match="/">
<xsl:for-each select="POLICIES/POLICY/POLINPUTS/FLD">
<xsl:value-of select="."/>
<xsl:if test="position() != last()">
<xsl:text>, </xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>