Agent should consider changes to environment variable name prefix for parameters

Current Situation

• The JobScheduler Master can be configured to use individual prefixes for environment variable names that are created to expose parameters to shell scripts. This setting is applied in scheduler.xml with the default value:

  <param name="scheduler.variable_name_prefix" value="SCHEDULER_PARAM_"/>
  

• A individual setting of the variable name prefix is considered for parameters on the Master. Individual settings are not considered by Agents. Agents constantly use the default value SCHEDULER_PARAM_

Desired Behavior

• Agents should consider the variable name prefix as configured by the respective Master.