tracertools: bump version

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

utils/tracertools/Makefile

@@ -16,7 +16,7 @@ PKG_LICENSE:=GPL-3.0
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://gitorious.org/tracertools/tracertools.git
-PKG_SOURCE_VERSION:=4a0db8bc583db00d1a52670a31e1e36101f433e5
+PKG_SOURCE_VERSION:=4a6eb477a850e102f37b6f6690b0797ec664f36d
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz