Add \versionid.

[sgt/halibut] / doc / input.but

diff --git a/doc/input.but b/doc/input.but
index 7d5eb97..978db0c 100644 (file)
--- a/doc/input.but
+++ b/doc/input.but
@@ -1,3 +1,5 @@
+\versionid $Id$
+
 \C{input} Halibut input format
 
 This chapter describes the format in which you should write