Fix from upstream CLL: make examples consistent

The affected example is introduced as "the prenex version" of the
previous example, so it should be in line with the previous example.

Proposed in lojban/cll#421

src/16-quantifiers.xml

@@ -927,9 +927,9 @@
       <title>
       </title>
       <interlinear-gloss>
-        <jbo>naku zo'u la .djan. cu klama</jbo>
-        <gloss>It-is-not-the-case-that : that-named John - comes.</gloss>
-        <natlang>It is false that: John comes.</natlang>
+        <jbo>naku zo'u mi klama le zarci</jbo>
+        <gloss>It-is-not-the-case-that : I go-to the store.</gloss>
+        <natlang>It is false that: I go to the store.</natlang>
       </interlinear-gloss>
     </example>
     <para role="indent">