Fails when filenames contain spaces

[Robert Sander]

The docbook2anything commands fail when there are spaces in filenames or directory names.

gurubert@sperry:/usr/local/anarchy/gurubert/I-Systems/docs/IT Infrastructure Documentation$ docbook2html -o html -u Index.docbook
/usr/bin/jw: line 273: [: too many arguments
basename: extra operand `Documentation/Index.docbook'
Try `basename --help' for more information.
/usr/bin/jw: line 408: [: too many arguments
Using catalogs: /etc/sgml/catalog
Using stylesheet: /usr/share/docbook-utils/docbook-utils.dsl#html
Working on: /usr/local/anarchy/gurubert/I-Systems/docs/IT Infrastructure Documentation/Index.docbook
/usr/bin/jw: line 425: cd: /usr/local/anarchy/gurubert/I-Systems/docs/IT: No such file or directory
openjade:E: cannot open "/usr/local/anarchy/gurubert/I-Systems/docs/IT" (No such file or directory)
openjade:E: cannot find "Infrastructure"; tried "Infrastructure", "/usr/local/share/sgml/Infrastructure", "/usr/share/sgml/Infrastructure"
openjade:E: cannot find "Documentation/Index.docbook"; tried "Documentation/Index.docbook", "/usr/local/share/sgml/Documentation/Index.docbook", "/usr/share/sgml/Documentation/Index.docbook"
openjade:/usr/share/sgml/declaration/xml.dcl:190:1:E: end of document in prolog
/usr/bin/jw: line 436: cd: /usr/local/anarchy/gurubert/I-Systems/docs/IT: No such file or directory

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: docbook-utils 0.6.14-1.1
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Fri Oct 21 09:14:51 2011
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
 LANGUAGE=en_US:en
SourcePackage: docbook-utils
UpgradeStatus: Upgraded to natty on 2011-09-07 (43 days ago)