Fix Telegraf mysql commands metric names

gistfile1.txt

metric_relabel_configs:
- source_labels:
  - __name__
  regex: 'mysql_com_(.+)'
  target_label: command
  - __name__
  regex: 'mysql_com_(.+)'
  target_label: __name__
  replacement: mysql_commands_total

junos exapmle

Turn junos_2636_1_1_1_2_25_operational_status into junos_operational_status

metric_relabel_configs:
- source_labels:
  - __name__
  regex: 'junos_2636_1_1_1_2_25_operational_status'
  target_label: __name__
  replacement: junos_operational_status