394671: Fix setting loglevel on commandline via -Dorg.eclipse.jetty.LEVEL=DEBUG

jetty-start/src/main/resources/org/eclipse/jetty/start/usage.txt

@@ -55,10 +55,11 @@ System Properties:
       A Low Level Jetty Logger Implementation to use
       (default: org.eclipse.jetty.util.log.Slf4jLog)
       
-    org.eclipse.jetty.util.log.DEBUG=[boolean]
-      Debug logging for the stderr and javautil Loggers. Slf4j
+    [name|hierarchy].LEVEL=[loglevel]
+      Change loglevel for the stderr and javautil Loggers. Slf4j
       and other loggers must be separately configured for debug.
-      (default: false)
+      For example: Dorg.eclipse.jetty.LEVEL=DEBUG
+      (default: INFO)
       
     org.eclipse.jetty.util.log.IGNORED=[boolean]
       Ignored exceptions are logged, independent of DEBUG settings

jetty-util/src/main/java/org/eclipse/jetty/util/log/Log.java

@@ -106,7 +106,7 @@ public class Log
                     }
                     finally
                     {
-                        IO.close(in);
+                        safeCloseInputStream(in);
                     }
                 }
 
@@ -133,6 +133,19 @@ public class Log
         });
     }
 
+    private static void safeCloseInputStream(InputStream in)
+    {
+        try
+        {
+            if (in != null)
+                in.close();
+        }
+        catch (IOException e)
+        {
+            LOG.ignore(e);
+        }
+    }
+
     private static Logger LOG;
     private static boolean __initialized;
 

jetty-util/src/main/java/org/eclipse/jetty/util/log/StdErrLog.java

@@ -35,7 +35,7 @@ import org.eclipse.jetty.util.annotation.ManagedObject;
  * <p>
  * Configuration Properties:
  * <dl>
- *   <dt>${name|heirarchy}.LEVEL=(ALL|DEBUG|INFO|WARN|OFF)</dt>
+ *   <dt>${name|hierarchy}.LEVEL=(ALL|DEBUG|INFO|WARN|OFF)</dt>
  *   <dd>
  *   Sets the level that the Logger should log at.<br/>
  *   Names can be a package name, or a fully qualified class name.<br/>