busybox: tweak help text and copyright year

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 73f71f1..09e886d 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -627,11 +627,11 @@
 		full_write2_str(bb_banner); /* reuse const string */
 		full_write2_str(" multi-call binary.\n"); /* reuse */
 		full_write2_str(
-			"Copyright (C) 1998-2011 Erik Andersen, Rob Landley, Denys Vlasenko\n"
+			"Copyright (C) 1998-2012 Erik Andersen, Rob Landley, Denys Vlasenko\n"
 			"and others. Licensed under GPLv2.\n"
 			"See source distribution for full notice.\n"
 			"\n"
-			"Usage: busybox [function] [arguments]...\n"
+			"Usage: busybox [function [arguments]...]\n"
 			"   or: busybox --list"IF_FEATURE_INSTALLER("[-full]")"\n"
 			IF_FEATURE_INSTALLER(
 			"   or: busybox --install [-s] [DIR]\n"