Name the parser that exists, and drop a comment's backstory

Main's new ".git is never part of a repo name" paragraph lists the ref parsers that drop the suffix, and named parseMirrorCloneURL — which this branch replaced with parseEntireCloneURL. The merge could not catch it: the paragraph arrived from main as new text, conflicted with nothing, and the doc link test does not validate names inside code spans. Five other deleted symbols were swept for while there; none appear.

A test comment introduced repo view as "the verb that replaced mirror get". That is where it came from, not what it is — the grammar it pins is the point, and a reader a year from now has no mirror get to relate it to.