Fix a documentation warning.

Fix

epan/conversation_filter.h:43:11: warning: parameter 'A' not found in the function declaration [-Wdocumentation]
 * @param A valid protocol name.
          ^
epan/conversation_filter.h:43:11: note: did you mean 'proto_name'?

1 files changed, 1 insertions, 1 deletions

diff --git a/epan/conversation_filter.h b/epan/conversation_filter.h
index 7fd4f0f78e..5639b1837a 100644
--- a/epan/conversation_filter.h
+++ b/epan/conversation_filter.h
@@ -40,7 +40,7 @@ WS_DLL_PUBLIC void register_log_conversation_filter(const char *proto_name, cons
                                                       is_filter_valid_func is_filter_valid, build_filter_string_func build_filter_string);
 /**
  * Prepend a protocol to the list of filterable protocols.
- * @param A valid protocol name.
+ * @param proto_name A valid protocol name.
  */
 WS_DLL_PUBLIC void add_conversation_filter_protocol(const char *proto_name);