fix for bug #218774

clear filter (and spam) log doesn't appear to work, you have to close and re open the dialog

r/sr=bienvenu

mailnews/base/resources/content/junkLog.js

@@ -31,6 +31,6 @@ function clearLog()
   gSpamSettings.clearLog();
 
   // reload the newly truncated file
-  gLogView.setAttribute("src", gSpamSettings.logURL);
+  gLogView.reload();
 }
 

mailnews/base/search/resources/content/viewLog.js

@@ -31,6 +31,6 @@ function clearLog()
   gFilterList.clearLog();
 
   // reload the newly truncated file
-  gLogView.setAttribute("src", gFilterList.logURL);
+  gLogView.reload();
 }