= Change Log pattern to report line number in Spring Boot

Add logback.xml on the classpath.

[source,xml]
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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
    <property name="LOG_FILE" value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}}/spring.log}"/>
    <include resource="org/springframework/boot/logging/logback/file-appender.xml"/>
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss,SSS} %-5level ${PID:- } --- [%15.15t] [%logger{36}.%M\(%line\)] %msg%n
            </pattern>
            <charset>utf8</charset>
        </encoder>
    </appender>
    <logger name="org.springframework" level="INFO"/>
    <logger name="org.apache.zookeeper" level="WARN"/>
    <root level="INFO">
        <appender-ref ref="CONSOLE"/>
        <appender-ref ref="FILE"/>
    </root>
</configuration>
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