Add optionals attributes in <define> node

[aldhor]

Optional attribute:

https://logback.qos.ch/manual/configuration.html#definingPropsOnTheFly

It is very useful to set parameters in runtime. For example, the name of the file or directory of a FILE type appender. You can recall ten value using ${LOG_PATH} in the example

Best regards

[aldhor]

I can see the fix, need add processContents=lax in xsd:any and xsd:anyAttribute

<xsd:complexType name="Define"> xsd:sequence <xsd:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/> </xsd:sequence> <xsd:anyAttribute processContents="lax" /> </xsd:complexType>