Fix error message when user can’t handle issues

The access denied reason was passed in instead of user id, causing error message
to show user id of 0 and no reason.  The fix was to pass the user id then reason.

Also changed reason messages to not re-reference the user id, but just focus on reason.

Messages will look as follows:
`Access denied for vboctor.  Reason: User does not have access right to handle issues.`

Fixes #22762

api/soap/mc_issue_api.php

@@ -679,18 +679,18 @@ function mc_issue_get_id_from_summary( $p_username, $p_password, $p_summary ) {
  */
 function mci_issue_handler_access_check( $p_user_id, $p_project_id, $p_old_handler_id, $p_new_handler_id ) {
 	if( $p_new_handler_id != 0 ) {
-		if ( !user_exists( $p_new_handler_id ) ) {
+		if( !user_exists( $p_new_handler_id ) ) {
 			return ApiObjectFactory::faultNotFound( 'User \'' . $p_new_handler_id . '\' does not exist.' );
 		}
 
 		if( !access_has_project_level( config_get( 'handle_bug_threshold' ), $p_project_id, $p_new_handler_id ) ) {
-			return mci_fault_access_denied( 'User \'' . $p_new_handler_id . '\' does not have access right to handle issues' );
+			return mci_fault_access_denied( $p_new_handler_id, 'User does not have access right to handle issues' );
 		}
 	}
 
 	if( $p_old_handler_id != $p_new_handler_id ) {
 		if( !access_has_project_level( config_get( 'update_bug_assign_threshold' ), $p_project_id, $p_user_id ) ) {
-			return mci_fault_access_denied( 'User \'' . $p_user_id . '\' does not have access right to assign issues' );
+			return mci_fault_access_denied( $p_user_id, 'User does not have access right to assign issues' );
 		}
 	}
 
@@ -763,7 +763,7 @@ function mc_issue_add( $p_username, $p_password, $p_issue ) {
 	}
 
 	if( !access_has_project_level( config_get( 'report_bug_threshold' ), $t_project_id, $t_user_id ) ) {
-		return mci_fault_access_denied( 'User \'' . $t_user_id . '\' does not have access right to report issues' );
+		return mci_fault_access_denied( $t_user_id, 'User \'' . user_get_name( $t_user_id ) . '\' does not have access right to report issues' );
 	}
 
 	$t_access_check_result = mci_issue_handler_access_check( $t_user_id, $t_project_id, /* old */ 0, /* new */ $t_handler_id );