Development record

convOpenQuestionsSource's truncation evidence names only the "%d-file walk cap", but WalkFiles now also truncates on its directory cap and its depth cap, so a walk stopped by either reports a cause it did not hit. The three affected strings are the searched note, the blank's qualified question, and the non-blank scan note. convInternalsSource words the same note as "walk cap (N entries, M levels deep)"; the two should say the same thing. Found by an independent security review of the itd-96 diff.