deprecate 'descr' paramter in external apis

deltachat-ffi/deltachat.h

@@ -1161,8 +1161,7 @@ uint32_t dc_send_videochat_invitation (dc_context_t* context, uint32_t chat_id);
  *     - `document`: optional document name. shown eg. in title bar.
  *     - `summary`: optional summary. shown beside app icon.
  *     - `notify`: optional array of other users `selfAddr` to be notified e.g. by a sound about `info` or `summary`.
- * @param descr The user-visible description of JSON data,
- *     in case of a chess game, e.g. the move.
+ * @param descr Deprecated, set to NULL
  * @return 1=success, 0=error
  */
 int dc_send_webxdc_status_update (dc_context_t* context, uint32_t msg_id, const char* json, const char* descr);

deltachat-ffi/src/lib.rs

@@ -1065,7 +1065,7 @@ pub unsafe extern "C" fn dc_send_webxdc_status_update(
     context: *mut dc_context_t,
     msg_id: u32,
     json: *const libc::c_char,
-    _unused: *const libc::c_char,
+    _descr: *const libc::c_char,
 ) -> libc::c_int {
     if context.is_null() {
         eprintln!("ignoring careless call to dc_send_webxdc_status_update()");

deltachat-jsonrpc/src/api.rs

@@ -1767,7 +1767,7 @@ impl CommandApi {
         account_id: u32,
         instance_msg_id: u32,
         update_str: String,
-        _unused: String,
+        _descr: String,
     ) -> Result<()> {
         let ctx = self.get_context(account_id).await?;
         ctx.send_webxdc_status_update(MsgId::new(instance_msg_id), &update_str)

src/webxdc.rs

@@ -13,7 +13,7 @@
 //! - `msg_id` - ID of the message in the `msgs` table
 //! - `first_serial` - serial number of the first status update to send
 //! - `last_serial` - serial number of the last status update to send
-//! - `descr` - text to send along with the updates
+//! - `descr` - not used, set to empty string
 
 mod integration;
 mod maps_integration;