fix error msg, only show branch to admin owner

Author: wxiaoguang

services/wiki/wiki.go

@@ -43,7 +43,7 @@ func InitWiki(ctx context.Context, repo *repo_model.Repository) error {
 	} else if err = repo_module.CreateDelegateHooks(repo.WikiPath()); err != nil {
 		return fmt.Errorf("createDelegateHooks: %w", err)
 	} else if _, _, err = git.NewCommand(ctx, "symbolic-ref", "HEAD").AddDynamicArguments(git.BranchPrefix + repo.DefaultWikiBranch).RunStdString(&git.RunOpts{Dir: repo.WikiPath()}); err != nil {
-		return fmt.Errorf("unable to set default wiki branch to master: %w", err)
+		return fmt.Errorf("unable to set default wiki branch to %q: %w", repo.DefaultWikiBranch, err)
 	}
 	return nil
 }

templates/repo/wiki/pages.tmpl

@@ -10,7 +10,7 @@
 				{{end}}
 			</span>
 		</h2>
-		<div>{{ctx.Locale.Tr "repo.default_branch"}}: {{.Repository.DefaultWikiBranch}}</div>
+		{{if .IsRepositoryAdmin}}<div>{{ctx.Locale.Tr "repo.default_branch"}}: {{.Repository.DefaultWikiBranch}}</div>{{end}}
 		<table class="ui table wiki-pages-list">
 			<tbody>
 				{{range .Pages}}