message: simple_away: Convert to UTC time
  convert to utc time
  add tz to the away string subst
diff: @@ -211,7 +211,7 @@ class CSimpleAway : public CModule {
  if (sReason.empty()) sReason = SIMPLE_AWAY_DEFAULT_REASON;
  time_t iTime = time(nullptr);
  - CString sTime = CUtils::CTime(iTime, GetUser()->GetTimezone());
  + CString sTime = CUtils::CTime(iTime, "Etc/UTC") + " UTC";
  sReason.Replace("%awaytime%", sTime);
  sReason = ExpandString(sReason);
  sReason.Replace("%s", sTime); // Backwards compatibility with previous
  