[CC1101] Fix doxygen comment

src/modules/CC1101/CC1101.h

@@ -874,7 +874,7 @@ class CC1101: public PhysicalLayer {
      /*!
       \brief Set modem in "sniff" mode: no packet filtering (e.g., no preamble, sync word, address, CRC).
       \param enable Set or unset promiscuous mode.
-      \param defaults to false: no carriersense, true: sets carriersense above threshold
+      \param requireCarrierSense Set carriersense required above threshold, defaults to false.
       \returns \ref status_codes
     */
     int16_t setPromiscuousMode(bool enable = true, bool requireCarrierSense = false);