[LU-2897] the lbuild "trap 'xxxx' ERR" must be unset before exit

• Type: Bug
• Resolution: Won't Fix
• Priority: Minor
• Severity: 3
• Assignee: WC Triage
• Reporter: Bruce Korb (Inactive)

Description

If not cleared, the backtrace and bug reporting function gets invoked.
Since calls to fatal() imply an error was detected, it is not
an "uncaught error" but a well-known error.

Also a dinkleberry version of "usage()" was left in lbuild.