You can suppress the prolog (nonmessage text) part of all serviceability messages generated by an application by setting the value of the SVC_BRIEF environment variable to 1.
The prolog of a serviceability consists of all the nonmessage information that is output before the message text itself. For example, examine the following message:
1994-04-05-20:13:34.500+00:00I----- PID#9467 NOTICE hel main hello_svc.c line_nr 0xa444e208
Hello World
In this example, the first line is the message prolog, and the second line is the message text. If the message were generated with the SVC_BRIEF environment variable set to 1, the message would appear as follows:
Hello World
Prologs of separate messages can be suppressed selectively through the use of the svc_c_action_brief attribute; see Message Action Attributes.