added copyright, @SInCE to Slf4jEnvUtil

Signed-off-by: Ceki Gulcu <ceki@qos.ch>

slf4j-api/src/main/java/org/slf4j/helpers/Slf4jEnvUtil.java

@@ -1,8 +1,37 @@
+/*
+ *  Copyright (c) 2004-2024 QOS.ch
+ *  All rights reserved.
+ *
+ *  Permission is hereby granted, free  of charge, to any person obtaining
+ *  a  copy  of this  software  and  associated  documentation files  (the
+ *  "Software"), to  deal in  the Software without  restriction, including
+ *  without limitation  the rights to  use, copy, modify,  merge, publish,
+ *  distribute,  sublicense, and/or sell  copies of  the Software,  and to
+ *  permit persons to whom the Software  is furnished to do so, subject to
+ *  the following conditions:
+ *
+ *  The  above  copyright  notice  and  this permission  notice  shall  be
+ *  included in all copies or substantial portions of the Software.
+ *
+ *  THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
+ *  EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
+ *  MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
+ *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ *  OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
+ *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
 package org.slf4j.helpers;
 
 import java.lang.module.ModuleDescriptor;
 import java.util.Optional;
 
+/**
+ * Various utility methods
+ *
+ * @since 2.0.14
+ */
 public class Slf4jEnvUtil {
 
 
@@ -12,7 +41,7 @@ public class Slf4jEnvUtil {
      * </p>
      *
      * @return current version or null if missing version data
-     * @since 1.3.0
+     * @since 2.0.14
      */
     static public String slf4jVersion() {
         String moduleVersion = slf4jVersionByModule();
@@ -32,7 +61,7 @@ static public String slf4jVersion() {
      * available.
      * </p>
      *
-     * @since 1.3.0
+     * @since 2.0.14
      * @return current version or null if missing version data
      */
     static private String slf4jVersionByModule() {