fix logpattern
<logGroup>ec2awslogs</logGroup>
<logStream>ciaapplogs</logStream>
<layout class="com.j256.cloudwatchlogbackappender.Ec2PatternLayout">
- <pattern>\[%instance\] \[%thread\] %level %logger{20} - %msg%n%xThrowable</pattern>
+ <pattern>[%instance] [%thread] %level %logger{20} - %msg%n%xThrowable</pattern>
</layout>
</appender>
