fixing the output format of edugain_status

(cherry picked from commit 955c364e)

lib/API.php

@@ -600,7 +600,7 @@ class API {
                    when no federation code is present an array of code-indexed participating federations with details as described above'
             ],
             'examples' => [
-                ['opt' => ['only_errors'], 'title' => 'only fedrations with problems',],
+                ['opt' => ['only_errors'=>1,], 'title' => 'only fedrations with problems',],
                 ['opt' => ['fed_id' => 'PIONIER-ID',],'title' => 'show status of PIONIER.Id',],
                 ['opt' => ['fed_id' => 'PIONIER-ID',], 'format' => 'json', 'title' => 'show status of PIONIER.Id in JSON',]
             ]
@@ -620,7 +620,7 @@ class API {
             }
             foreach ($edugain->FEDS as $fed) {
                 if ($fed['feed_problem'] > 0 || $fed['valid_sec'] < $sec) {
-                    $out[] = $fed;
+                    $out[$fed['code']] = $fed;
                 }
             }