cleanup: Fix comment formatting errors.

Cimple is now stricter in these.

toxav/rtp.h

@@ -78,9 +78,9 @@ struct RTPHeader {
     uint64_t flags;
 
     /**
-     * The full 32 bit data offset of the current data chunk. The @ref
-     * offset_lower data member contains the lower 16 bits of this value. For
-     * frames smaller than 64KiB, @ref offset_full and @ref offset_lower are
+     * The full 32 bit data offset of the current data chunk. The
+     * @ref offset_lower data member contains the lower 16 bits of this value.
+     * For frames smaller than 64KiB, @ref offset_full and @ref offset_lower are
      * equal.
      */
     uint32_t offset_full;

toxcore/friend_connection.h

@@ -55,7 +55,8 @@ typedef struct Friend_Connections Friend_Connections;
 
 Net_Crypto *_Nonnull friendconn_net_crypto(const Friend_Connections *_Nonnull fr_c);
 
-/** @return friendcon_id corresponding to the real public key on success.
+/**
+ * @return friendcon_id corresponding to the real public key on success.
  * @retval -1 on failure.
  */
 int getfriend_conn_id_pk(const Friend_Connections *_Nonnull fr_c, const uint8_t *_Nonnull real_pk);

toxcore/tox_options.h

@@ -239,12 +239,13 @@ struct Tox_Options {
      */
     void *log_user_data;
 
-    /**
+    /*
      * These options are experimental, so avoid writing code that depends on
      * them. Options marked "experimental" may change their behaviour or go away
      * entirely in the future, or may be renamed to something non-experimental
      * if they become part of the supported API.
      */
+
     /**
      * Make public API functions thread-safe using a per-instance lock.
      *