- Added transaction_arg_set()

- Modifed coverage script

apps/backend/clixon_backend_plugin.h

@@ -43,14 +43,14 @@
  */
 
 /*! Transaction data describing a system transition from a src to target state
- * Clicon internal, presented as void* to app's callback in the 'transaction_data'
+ * Clixon internal, presented as void* to app's callback in the 'transaction_data'
  * type in clicon_backend_api.h
  * The struct contains source and target XML tree (e.g. candidate/running)
  * But primarily a set of XML tree vectors (dvec, avec, cvec) and associated lengths
  * These contain the difference between src and target XML, ie "what has changed".
  * It is up to the validate callbacks to ensure that these changes are OK
  * It is up to the commit callbacks to enforce these changes in the "state" of 
- *the system.
+ * the system.
  */
 typedef struct {
     uint64_t   td_id;       /* Transaction id */