Some doxygen comments.

Signed-off-by: Andrew Fyfe <andrew@neptune-one.net>

lib/libalpm/deps.c

@@ -218,7 +218,7 @@ alpm_list_t *_alpm_sortbydeps(alpm_list_t *targets, pmtranstype_t mode)
  * @param db pointer to the local package database
  * @param op transaction type
  * @param packages an alpm_list_t* of packages to be checked
- * @return an alpm_list_t* of missing_t pointers.
+ * @return an alpm_list_t* of pmpkg_t* of missing_t pointers.
  */
 alpm_list_t *_alpm_checkdeps(pmdb_t *db, pmtranstype_t op,
                              alpm_list_t *packages)

lib/libalpm/trans.c

@@ -295,6 +295,11 @@ int _alpm_trans_sysupgrade(pmtrans_t *trans)
 	return(_alpm_sync_sysupgrade(trans, handle->db_local, handle->dbs_sync));
 }
 
+/** Add a target to the transaction.
+ * @param trans the current transaction
+ * @param target the name of the target to add
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
 int _alpm_trans_addtarget(pmtrans_t *trans, char *target)
 {
 	ALPM_LOG_FUNC;