There's a bug in docbook-tools 0.6.14: If the directory containing  
the DocBook file to be processed has a space in it, the scripts will  
fail.

I've attached a patch that fixes this bug. Basically, all I did was  
put quotes around shell variables. However, I did have to make a more  
substantial change: The SGML_FILE variable had to be factored out of  
SGML_ARGUMENTS so that it could be quoted.

Could someone with commit rights please take a look at this patch and  
apply it? Thanks,

Trevor