[vala/0.54] valadoc: Include path to doclet in error message

[Rico Tzschichholz <ricotz src gnome org>]

commit 8db76acdd7a75261a91838aa9e18361b644cf963
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Tue Apr 5 11:01:11 2022 +0200

    valadoc: Include path to doclet in error message

 valadoc/valadoc.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/valadoc/valadoc.vala b/valadoc/valadoc.vala
index 69642864f..9460439bd 100644
--- a/valadoc/valadoc.vala
+++ b/valadoc/valadoc.vala
@@ -194,7 +194,7 @@ public class ValaDoc : Object {
 
                doclet = modules.create_doclet (pluginpath);
                if (doclet == null) {
-                       reporter.simple_error (null, "failed to load doclet");
+                       reporter.simple_error (null, "failed to load doclet '%s'", pluginpath);
                        return null;
                }