Add semicolon (#581)

Co-authored-by: zhangchao36 <zhangchao36@jd.com>
diff --git a/src/main/java/org/apache/commons/lang3/exception/ContextedException.java b/src/main/java/org/apache/commons/lang3/exception/ContextedException.java
index 02b2b22..1a6825d 100644
--- a/src/main/java/org/apache/commons/lang3/exception/ContextedException.java
+++ b/src/main/java/org/apache/commons/lang3/exception/ContextedException.java
@@ -45,7 +45,7 @@
  *     throw new ContextedException("Error posting account transaction", e)
  *          .addContextValue("Account Number", accountNumber)
  *          .addContextValue("Amount Posted", amountPosted)
- *          .addContextValue("Previous Balance", previousBalance)
+ *          .addContextValue("Previous Balance", previousBalance);
  *   }
  * }
  * </pre>
diff --git a/src/main/java/org/apache/commons/lang3/exception/ContextedRuntimeException.java b/src/main/java/org/apache/commons/lang3/exception/ContextedRuntimeException.java
index 12db259..394b070 100644
--- a/src/main/java/org/apache/commons/lang3/exception/ContextedRuntimeException.java
+++ b/src/main/java/org/apache/commons/lang3/exception/ContextedRuntimeException.java
@@ -45,7 +45,7 @@
  *     throw new ContextedRuntimeException("Error posting account transaction", e)
  *          .addContextValue("Account Number", accountNumber)
  *          .addContextValue("Amount Posted", amountPosted)
- *          .addContextValue("Previous Balance", previousBalance)
+ *          .addContextValue("Previous Balance", previousBalance);
  *   }
  * }
  * </pre>