parameters:
    m6_web_monolog_extra.processor.contextInformation.class: M6Web\Bundle\MonologExtraBundle\Processor\ContextInformationProcessor

services:
    m6_web_monolog_extra.processor.contextInformation:
        abstract: true
        class: %m6_web_monolog_extra.processor.contextInformation.class%
        arguments:
            - @service_container
            - @m6_web_monolog_extra.expression_language
        calls:
            - [ setConfiguration, []]

    m6_web_monolog_extra.expression_language:
        class: Symfony\Component\ExpressionLanguage\ExpressionLanguage
        public: false

parameters:
    m6_web_monolog_extra.processor.contextInformation.class: M6Web\Bundle\MonologExtraBundle\Processor\ContextInformationProcessor

services:
    m6_web_monolog_extra.processor.contextInformation:
        abstract: true
        class: '%m6_web_monolog_extra.processor.contextInformation.class%'
        arguments:
            - '@service_container'
            - '@m6_web_monolog_extra.expression_language'
        calls:
            - [ setConfiguration, []]

    m6_web_monolog_extra.expression_language:
        class: Symfony\Component\ExpressionLanguage\ExpressionLanguage
        public: false

Fix unquoted param & services references
[SF3] Fix unquoted param & services references