test1
See:
http://www.fooa.com/test1
http://www.fooa.com/_test1
https://www.foob.com/test1
http://www.fooc.com/test1
test1
Also piggyback a few tests for https://github.com/dlang/dmd/pull/6989
not_a_tag_because_it_does_not_start_with_uppercase:
not_a_tag_because_no_whitespace_after_colon:x
TagGalore: yes this is a tag
MoreTag: yes the above is also a tag