you just have to create a template for the @atttrib2:

<template match="@attrib2">
    <xsl:attribute name="@attrib2" select="'0'"/>
</template>

Using xsl:attribute with @select in a 1.0 transformation provokes a
variety of reactions from processors. Xalan C++ 1.10.0 throws an error,
LibXSLT 10120 ignores it, Saxon 9.0.0.2J processes @select as if
allowed.