Minor wording improvements

plugins/usbdmx/EuroliteProFactory.cpp

@@ -67,7 +67,7 @@ EuroliteProFactory::EuroliteProFactory(ola::usb::LibUsbAdaptor *adaptor,
          iter != serials.end(); ++iter) {
       if (iter->empty()) {
         OLA_WARN << EUROLITE_MK2_SERIAL_KEY
-                 << " requires a serial key string, but it is empty.";
+                 << " requires a serial number, but it is empty.";
       } else if (STLContains(m_expected_eurolite_mk2_serials, *iter)) {
         OLA_WARN << EUROLITE_MK2_SERIAL_KEY << " lists serial "
                  << *iter << " more than once.";
@@ -141,7 +141,7 @@ bool EuroliteProFactory::DeviceAdded(
                << " could be a Eurolite USB-DMX512-PRO MK2 but was "
                << "ignored, because "
                << ENABLE_EUROLITE_MK2_KEY << " was false and "
-               << "its serial number was not listed specifically with "
+               << "its serial number was not listed specifically in "
                << EUROLITE_MK2_SERIAL_KEY;
       return false;
     }

plugins/usbdmx/README.md

@@ -29,7 +29,7 @@ Whether to enable detection of the Eurolite USB-DMX512 PRO MK2.
 Default = `false`. This device is indistinguishable from other devices
 with an FTDI chip, and is therefore disabled by default. When enabled,
 this plugin will conflict with the usbserial, StageProfi and FTDI USB DMX
-plugins. If this is undesirable, the `eurolite_mk2_serial` key can be
+plugins. If this is undesirable, the `eurolite_mk2_serial` setting can be
 used instead, which manually marks a specific USB device as a Eurolite
 USB-DMX512 PRO MK2.