Accidentally kept Lm_filename_util.unescape_string.
This commit is the same as 9839.
----
Changes:
+28 -30 omake-branches/0.9.8.x/src/ir/omake_node.ml
A hyperlinked version of this commit is available at
http://svn.metaprl.org/commitlogs/omake/2007-03.html#07/03/23.08:51:26