Update TFKit to v0.0.8

utils/tfkit/runtests

 # tfkit - Shellfu's movable test framework
 # See LICENSE file for copyright and license details.
 
-TF_VERSION="0.0.7"
+TF_VERSION="0.0.8"
 
 die() {
     echo "$@" && exit 9

utils/tfkit/tfkit.mk

-# tfkit - Fastfoo - Bash dot on steroids
+# tfkit - Shellfu's movable test framework
 # See LICENSE file for copyright and license details.
 #
 # To use, set TF_DIR (make macro) in your Makefile and