If we do not find the named xlat, or the attribute, and there's
authoraland <aland>
Wed, 14 Aug 2002 19:02:37 +0000 (19:02 +0000)
committeraland <aland>
Wed, 14 Aug 2002 19:02:37 +0000 (19:02 +0000)
commit1d42773aa5127410f1b0d86ab462333f0d50ce25
tree0af33c20c36d6a4040a6b33c27479f7743908182
parente1cb19237e7235c10701673f3ca462408410493b
If we do not find the named xlat, or the attribute, and there's
nothing else to do (no :-${other} ), then skip the trailing closing
'}' in the input string.

Also, allow bare { and } in input strings, by using \ as an escape
character.
src/main/xlat.c