Build interning breaks on filenames with hypens.

[dante]

eg

var x = dojo.cache("myns", "file-name.html");

The regexp matching the filename bit only allows /'s and \w+'s:

([\\w\\.\\/]*)

adding a - to that block fixes:

([\\w\\.\\/-]*)

in buildUtil.js - buildUtil.interningDojoUriRegExpString

too late for 1.6?

[Kenneth G. Franqueiro]

(In [23584]) Committing dante's buildscript patch for hyphenated filename interning explosions, after re-testing locally. Fixes #12181 and ditches a superfluous print.