[linux] remove SIGTRAP warning message on si_code <= 0

This warning message was added in
a55e03a. It shows up
somewhat frequently in logs when `si_code == 0` and should not be
treated as a warning (it never was previously).

Author: andrurogerz

Sources/Target/Linux/Thread.cpp

@@ -114,7 +114,7 @@ ErrorCode Thread::updateStopInfo(int waitStatus) {
         // If the value of si_code is <= 0, then the signal was generated by a
         // user process via kill(2), sigsend(2), abort(3C), raise(3C), etc. No
         // action is needed other than updating the thread's stop info.
-        DS2LOG(Warning, "sigtrap code %d recieved from %" PRI_PID, si.si_code,
+        DS2LOG(Debug, "sigtrap code %d recieved from %" PRI_PID, si.si_code,
                si.si_pid);
         _stopInfo.reason = StopInfo::kReasonTrap;
         break;