Lambda-Closures durch Inline-Closures ersetzt

Change-Id: Ic4d3a5d1d6e66354b348b07fc95561739a2a0980
diff --git a/std/player/channel.c b/std/player/channel.c
index 9f8512a..3a11661 100644
--- a/std/player/channel.c
+++ b/std/player/channel.c
@@ -544,11 +544,9 @@
       SetProp(P_CHANNEL_SHORT, DEFAULT_SHORTCUTS
               + (IS_LEARNER(this_object()) ? WIZARD_SHORTCUTS : ([])));
     }
-    walk_mapping(QueryProp(P_CHANNEL_SHORT),
-                 lambda(({'i/*'*/, 'c, 'r}),
-                        ({#'+=, 'r/*'*/,
-                          ({#'sprintf/*'*/, "%5.5s = %s\n", 'i, 'c})})),
-                 &txt);
+    foreach(string abk, string ch_name : QueryProp(P_CHANNEL_SHORT)) {
+      txt += sprintf("%5.5s = %s\n", abk, ch_name);
+    }
     txt = sprintf("Folgende Abkuerzungen sind definiert:\n%-78#s\n",
                   implode(sort_array(old_explode(txt, "\n"), #'>/*'*/), "\n"));
     More(txt);