CG4: fix 2

cgroup4.sv

@@ -12,7 +12,7 @@ covergroup cg @(posedge clk);
     bins b1 = {1};
     bins b1 = {1};
     bins b2 = {2};
     bins b2 = {2};
     bins b3 = {3};
     bins b3 = {3};
-    };
+    }
   pb2: coverpoint B;
   pb2: coverpoint B;
   pb1x2: cross A,B;
   pb1x2: cross A,B;
 endgroup
 endgroup