Refactoring name of input

Author: yoshinorin

src/main/scala/gitbucket/monitoring/controllers/LogController.scala

@@ -14,7 +14,7 @@ trait LogController extends MonitoringControllerBase {
 
   get("/admin/monitoring/logs/gitbucketlog")(adminOnly {
     val defaultSettings = GitBucketLog.getDefaultSettings
-    val lineNum = request.getParameter("line-num")
+    val lineNum = request.getParameter("numOfDisplayLogLines")
 
     if (lineNum != null){
       try {

src/main/twirl/gitbucket/monitoring/information/logs/gitbucketlog.scala.html

@@ -12,7 +12,7 @@
       <form id="get-log-from-tail" action="@context.path/admin/monitoring/logs/gitbucketlog" method="get" class="form-inline">
         <div class="form-group">
           <button type="submit button" class="btn btn-default"><i class="glyphicon glyphicon-refresh"></i></button>
-          <input type="text" value="@s.displayedLines" name="line-num" class="form-control" placeholder="@s.displayedLines"/>
+          <input type="text" value="@s.displayedLines" name="numOfDisplayLogLines" class="form-control" placeholder="@s.displayedLines"/>
           lines displayed. You can specify the number of displayed lines value less than @defaultSettings.displayLimitLines. Default is @defaultSettings.defaultDisplayLines.
         </div>
       </form><br>