btr-hook and some generalizations

[m6w6/btr] / share / btr / btr-hook.flags

diff --git a/share/btr/btr-hook.flags b/share/btr/btr-hook.flags
new file mode 120000 (symlink)
index 0000000..9167e12
--- /dev/null
+++ b/share/btr/btr-hook.flags
@@ -0,0 +1 @@
+btr.flags
\ No newline at end of file