[vala] libusb: Do not use `weak' modifier where it is not applicable

[Jürg Billeter <juergbi src gnome org>]

commit 8c91f1079669d18835f8e63d618f1240fa0fa07a
Author: Jürg Billeter <j bitron ch>
Date:   Sat Mar 20 17:25:39 2010 +0100

    libusb: Do not use `weak' modifier where it is not applicable

 vapi/libusb.vapi |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/vapi/libusb.vapi b/vapi/libusb.vapi
index f53773e..93c797c 100644
--- a/vapi/libusb.vapi
+++ b/vapi/libusb.vapi
@@ -212,7 +212,7 @@ namespace USB {
 	}
 
 	[CCode (array_length = false)]
-	public static weak char[] strerror ();
+	public static unowned char[] strerror ();
 	public static void init ();
 	public static void set_debug (int level);
 	public static int find_busses ();