When constructing a URI path for a blob in the listing results, the
Azure provider should re-encode any "bad" characters. Azure provider
also should not call trim() on the blob name, as that will remove any
leading or trailing space characters (which the provider supports). In
fact, the trim() call is only required because of the fact that when
parsing the XML document in the Azure tests, the white space between
the tags was also included in the values. Changing when the character
array is reset eliminates the need to do so.
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