set flag printMapLikesEtc.

static L<SnippetVersion> textChangesOfSnippet(S snippetID, int maxVersions default 1000) {
  ret versionsOfSnippetWithText(filter(func(SnippetVersion v) -> Bool { eqic(v.change, "Text changed") }, takeFirst(maxVersions, getVersionsOfSnippet(snippetID))));
}