Pass wildcard as regular argument to ‘imagelist’.

src/refresh/images.c

@@ -1501,7 +1501,6 @@ static const cmd_option_t o_imagelist[] = {
     { "P", "placeholder", "list placeholder images" },
     { "s", "sprites", "list sprites" },
     { "w", "walls", "list walls" },
-    { "W:string", "wildcard", "list images matching wildcard" },
     { "y", "skies", "list skies" },
     { NULL }
 };
@@ -1533,10 +1532,9 @@ static void IMG_List_f(void)
         case 's': mask |= 1 << IT_SPRITE;   break;
         case 'w': mask |= 1 << IT_WALL;     break;
         case 'y': mask |= 1 << IT_SKY;      break;
-        case 'W': wildcard = cmd_optarg;    break;
         case 'P': placeholder = true;       break;
         case 'h':
-            Cmd_PrintUsage(o_imagelist, NULL);
+            Cmd_PrintUsage(o_imagelist, "[wildcard]");
             Com_Printf("List registered images.\n");
             Cmd_PrintHelp(o_imagelist);
             Com_Printf(
@@ -1558,6 +1556,9 @@ static void IMG_List_f(void)
         }
     }
 
+    if (cmd_optind < Cmd_Argc())
+        wildcard = Cmd_Argv(cmd_optind);
+
     Com_Printf("------------------\n");
     texels = count = 0;