Merge "Fluentd: fix Mariadb mysqld_safe log not match"

ansible/roles/common/templates/conf/input/02-mariadb.conf.j2

@@ -6,7 +6,7 @@
   tag infra.mariadb
   format multiline
   format_firstline /^\d{6}/
-  format1 /^(?<time>\d{6} \d{1,2}:\d{1,2}:\d{1,2}) \[(?<log_level>\S+)\] (?<Payload>.*)/
+  format1 /^(?<time>\d{6} \d{1,2}:\d{1,2}:\d{1,2}) (\[(?<log_level>\S+)\]|mysqld_safe) (?<Payload>.*)/
   time_format %y%m%d %k:%M:%S
   enable_watch_timer false
 </source>