Fix test method name.

Author: Gary Gregory

src/test/java/org/apache/commons/io/file/attribute/FileTimesTest.java

@@ -28,13 +28,6 @@
  */
 public class FileTimesTest {
 
-    @Test
-    public void PlusMinusMillis() {
-        final int millis = 2;
-        assertEquals(Instant.EPOCH.plusMillis(millis), FileTimes.plusMillis(FileTimes.EPOCH, millis).toInstant());
-        assertEquals(Instant.EPOCH, FileTimes.plusMillis(FileTimes.EPOCH, 0).toInstant());
-    }
-
     @Test
     public void testEpoch() {
         assertEquals(0, FileTimes.EPOCH.toMillis());
@@ -61,6 +54,13 @@ public void testMinusSeconds() {
         assertEquals(Instant.EPOCH, FileTimes.minusSeconds(FileTimes.EPOCH, 0).toInstant());
     }
 
+    @Test
+    public void testPlusMinusMillis() {
+        final int millis = 2;
+        assertEquals(Instant.EPOCH.plusMillis(millis), FileTimes.plusMillis(FileTimes.EPOCH, millis).toInstant());
+        assertEquals(Instant.EPOCH, FileTimes.plusMillis(FileTimes.EPOCH, 0).toInstant());
+    }
+
     @Test
     public void testPlusNanos() {
         final int millis = 2;