How does one get a fix into standard squeak release?

I changed this:

HttpUrl>>retrieveContentsArgs: args

	^self retrieveContentsArgs: args accept: 'application/octet-stream'

to this:

HttpUrl>>retrieveContentsArgs: args

	^self retrieveContentsArgs: args accept: (MIMEDocument guessTypeFromName: self)


because trying to fetch a .css file from an IIS server would produce an error using the former technique (it wants text/css as an ACCEPT type).

-Todd Blanchard