tracertools: use new git HEAD

gitorious archive became available, so I could import the project
history from there into the new repo on github. Rebasing the changes
made since 2014 on top of the original git tree obviously caused
the commit hashes to differ.

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://github.com/dangowrt/tracertools.git
-PKG_SOURCE_VERSION:=0428aa8585c915e64ce7cdb7c6f88cf2f5987b5f
+PKG_SOURCE_VERSION:=253e73fd379714239b51d5b0fd719b7c2d65f379
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz