Update own dogfood

utils/mkit/include/mkit.sh

     ver_line=$(
         {
             head -3 "$MKIT_INI"
-            tac "$MKIT_INI" | tail -3
+            tail -3 "$MKIT_INI"
         } | grep -m 1 -E '^# *mkit +version *= *v?[0-9]+\.[0-9]+\.[0-9]+'
     )
     test -n "$ver_line" \

utils/mkit/include/vars.sh

 #
 # This MKit version
 #
-MKIT_VERSION=0.0.21+HEAD.g47f8848
+MKIT_VERSION=0.0.22+master.gaafa785

utils/mkit/stub

             echo " 1. Look for placeholders starting with \`MKIT_STUB_\`"
             echo "    prefix by calling this command:"
             echo ""
-            echo "        grep -lw MKIT_STUB_ -r"
+            echo "        grep -l MKIT_STUB_ -r"
             echo ""
             echo " 2. Go through each file and locate the placeholder.  (You"
             echo "    will also see placeholders like \`__MKIT_*__\`, you can"
         *)        usage ;;
     esac
     updating && init_from_existing
-    if $MkLicense; then
+    if test -n $License; then
         known_licenses | grep -qxF "$License" \
          || die "unknown license (use -L to get list): $License"
         MkLicense=true