bitbake: build: Avoid duplicating logs in verbose mode

With "bitbake -v", for task failures you'd see the log output twice. Avoid
this by using the existing "did we print info" switch.

(Bitbake rev: e2c1afda4cb8023ed4ffeb5dc5bee4f0055659a8)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/build.py

@@ -699,6 +699,10 @@ def _exec_task(fn, task, d, quieterr):
                 event.fire(TaskFailedSilent(task, fn, logfn, localdata), localdata)
             else:
                 errprinted = errchk.triggered
+                # If the output is already on stdout, we've printed the information in the
+                # logs once already so don't duplicate
+                if verboseStdoutLogging:
+                    errprinted = True
                 logger.error(str(exc))
                 event.fire(TaskFailed(task, fn, logfn, localdata, errprinted), localdata)
             return 1