Specify the base URI for bug reports.
The base URI is used to construct bug report messages for message when
bug is called. Calling this function outside of a test case sets the default base URI for
all test cases. Calling it from within a test case changes the base URI for the scope of the test case only. Bug URIs are constructed by
appending a bug specific URI portion to uri_pattern, or by replacing the special string '%s' within uri_pattern
if that is present.
| uri_pattern |
the base pattern for bug URIs |