Fix cyclo doc

pmd-java/src/main/java/net/sourceforge/pmd/lang/java/metrics/impl/CycloMetric.java

@@ -13,7 +13,6 @@
 import net.sourceforge.pmd.lang.java.ast.ASTConditionalOrExpression;
 import net.sourceforge.pmd.lang.java.ast.ASTExpression;
 import net.sourceforge.pmd.lang.java.ast.ASTMethodOrConstructorDeclaration;
-import net.sourceforge.pmd.lang.java.ast.JavaNode;
 import net.sourceforge.pmd.lang.java.ast.JavaParserVisitor;
 import net.sourceforge.pmd.lang.java.metrics.JavaMetrics;
 import net.sourceforge.pmd.lang.java.metrics.api.JavaOperationMetricKey;
@@ -30,21 +29,26 @@
  *
  * <p>The standard version of the metric complies with McCabe's original definition [3]:
  *
- * <ul> <li>+1 for every control flow statement ({@code if, case, catch, throw, do, while, for, break, continue}) and
+ * <ul>
+ * <li>+1 for every control flow statement ({@code if, case, catch, throw, do, while, for, break, continue}) and
  * conditional expression ({@code ? : }). Notice switch cases count as one, but not the switch itself: the point is that
- * a switch should have the same complexity value as the equivalent series of {@code if} statements. <li>{@code else},
- * {@code finally} and {@code default} don't count; <li>+1 for every boolean operator ({@code &&, ||}) in the guard
- * condition of a control flow statement. That's because Java has short-circuit evaluation semantics for boolean
- * operators, which makes every boolean operator kind of a control flow statement in itself. </ul>
+ * a switch should have the same complexity value as the equivalent series of {@code if} statements.
+ * <li>{@code else}, {@code finally} and {@code default} don't count;
+ * <li>+1 for every boolean operator ({@code &&, ||}) in the guard condition of a control flow statement. That's because
+ * Java has short-circuit evaluation semantics for boolean operators, which makes every boolean operator kind of a
+ * control flow statement in itself.
+ * </ul>
  *
  * <p>Version {@link CycloVersion#IGNORE_BOOLEAN_PATHS}: Boolean operators are not counted, which means that empty
  * fall-through cases in {@code switch} statements are not counted as well.
  *
  * <p>References:
  *
- * <ul> <li> [1] Lanza, Object-Oriented Metrics in Practice, 2005. <li> [2] McCabe, A Complexity Measure, in Proceedings
- * of the 2nd ICSE (1976). <li> [3] <a href="https://docs.sonarqube.org/display/SONAR/Metrics+-+Complexity">Sonarqube
- * online documentation</a> </ul>
+ * <ul>
+ * <li> [1] Lanza, Object-Oriented Metrics in Practice, 2005.
+ * <li> [2] McCabe, A Complexity Measure, in Proceedings of the 2nd ICSE (1976).
+ * <li> [3] <a href="https://docs.sonarqube.org/display/SONAR/Metrics+-+Complexity">Sonarqube online documentation</a>
+ * </ul>
  *
  * @author Clément Fournier
  * @since June 2017