[IO-824] SymbolicLineFileFilter documentation fixes Javadoc

Apply variation of patch in the ticket

src/main/java/org/apache/commons/io/filefilter/SymbolicLinkFileFilter.java

@@ -71,7 +71,7 @@ public class SymbolicLinkFileFilter extends AbstractFileFilter implements Serial
      * unit test to works around this by doing two things: 1) This separates the class logic from
      * the call to identify a symbolic link, and 2) It allows the unit test to override that
      * symbolic link call on Windows only.
-     * This means we can write unit tests will run on all machines. On Windows, the unit test
+     * This means we can write unit tests that will run on all machines. On Windows, the unit test
      * can't create a symbolic link without admin privileges, so the unit tests won't
      * completely test all the necessary behavior on Windows, but they will still test the class
      * logic. Be careful not to break this, but be aware of it when writing unit tests. You can
@@ -117,10 +117,11 @@ public boolean accept(final File file) {
     }
 
     /**
-     * Checks to see if the file is a file.
+     * Checks to see if the file is a symbolic link.
      *
      * @param path the File Path to check
-     * @return true if the file exists and is a symbolic link to either another file or a directory.
+     * @return {@code onAccept} from {@link #SymbolicLinkFileFilter(FileVisitResult, FileVisitResult)} if the file exists and is a symbolic link to either
+     *         another file or a directory; returns {@code onReject} otherwise.
      */
     @Override
     public FileVisitResult accept(final Path path, final BasicFileAttributes attributes) {