javadoc corrections

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/io/trunk@1080846 13f79535-47bb-0310-9956-ffa450edef68

Author: Niall Pemberton

src/main/java/org/apache/commons/io/monitor/FileAlterationMonitor.java

@@ -154,8 +154,8 @@ public synchronized void stop() throws Exception {
      * Stop monitoring.
      *
      * @param stopInterval the amount of time in milliseconds to wait for the thread to finish.
-     * A value of zero will wait until the thread to finished (see {@link Thread#join(long)})
-     * and a nagative value will stop the process immediately).
+     * A value of zero will wait until the thread is finished (see {@link Thread#join(long)})
+     * and a negative value will stop the process immediately).
      * @throws Exception if an error occurs initializing the observer
      * @since Commons IO 2.1
      */