forge: doc_census_check main() 3 scans -> 1 Counter pass, byte-identical

tools/doc_census_check.py

@@ -1786,11 +1786,11 @@ def main():
         for v in bad:
             print(f"  {v['verdict']:10s} {v['file']}:{v.get('line', '-')} "
                   f"{v['unit']} claimed {v['claim']} at {v['rev']} -- {v['detail']}")
-        for k in sorted({v["verdict"] for v in rep["verdicts"]}):
+        verdict_counts = collections.Counter(v["verdict"] for v in rep["verdicts"])
+        for k in sorted(verdict_counts):
             if k in ("REV_UNCHECKED", "SELF_NOT_RUN", "CLONE_LOCAL"):
-                n = sum(1 for v in rep["verdicts"] if v["verdict"] == k)
-                print(f"  ({n} {k}: reported, never counted as a defect)")
-        for k, c in collections.Counter(v["verdict"] for v in rep["verdicts"]).items():
+                print(f"  ({verdict_counts[k]} {k}: reported, never counted as a defect)")
+        for k, c in verdict_counts.items():
             tot[k] += c
     print("\n--- verdict totals (unit: claims) ---")
     for k in sorted(tot):