Show class name instead of thread when logging to console or CLI

Applies to log shown when running `onos-service` or `log:tail` in the
ONOS CLI.

Change-Id: I8ba36308246c5e9d09c7691d929fcca8a699817b
(cherry picked from commit 4f6fff7843a0c402113be079befc63b0296d182a)
diff --git a/tools/package/etc/org.ops4j.pax.logging.cfg b/tools/package/etc/org.ops4j.pax.logging.cfg
index d88fd3c..036447d 100644
--- a/tools/package/etc/org.ops4j.pax.logging.cfg
+++ b/tools/package/etc/org.ops4j.pax.logging.cfg
@@ -27,7 +27,7 @@
 
 # Common pattern layout for appenders
 log4j2.pattern = %d{ISO8601} | %-5p | %-16t | %-32c{1} | %X{bundle.id} - %X{bundle.name} - %X{bundle.version} | %m%n
-log4j2.out.pattern = \u001b[90m%d{HH:mm:ss\.SSS}\u001b[0m %highlight{%-5level}{FATAL=${color.fatal}, ERROR=${color.error}, WARN=${color.warn}, INFO=${color.info}, DEBUG=${color.debug}, TRACE=${color.trace}} \u001b[90m[%t]\u001b[0m %msg%n%throwable
+log4j2.out.pattern = \u001b[90m%d{HH:mm:ss\.SSS}\u001b[0m %highlight{%-5level}{FATAL=${color.fatal}, ERROR=${color.error}, WARN=${color.warn}, INFO=${color.info}, DEBUG=${color.debug}, TRACE=${color.trace}} \u001b[90m[%c{1}]\u001b[0m %msg%n%throwable
 
 
 # Root logger