Fix the only warning from -Wswitch-enum we had

WebModules.cpp:511: error: enumeration value ‘PAGE_NOTFOUND’ not handled in
switch [-Wswitch-enum]


git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@2179 726aef4b-f618-498e-8847-2d620e286838

WebModules.cpp

@@ -520,6 +520,7 @@ void CWebSock::OnPageRequest(const CString& sURI) {
 		// the connection will be closed
 		Close(CLT_AFTERWRITE);
 		break;
+	case PAGE_NOTFOUND:
 	default:
 		PrintNotFound();
 		break;