Display warning for missing UPDATE privilege (bug #3466883)

adminer/edit.inc.php

@@ -77,7 +77,9 @@ if ($row === false) {
 
 <form action="" method="post" enctype="multipart/form-data" id="form">
 <?php
-if ($fields) {
+if (!$fields) {
+	echo "<p class='error'>" . lang('You have no privileges to update this table.') . "\n";
+} else {
 	echo "<table cellspacing='0' onkeydown='return editingKeydown(event);'>\n";
 	foreach ($fields as $name => $field) {
 		echo "<tr><th>" . $adminer->fieldName($field);

adminer/lang/cs.inc.php

@@ -263,6 +263,7 @@ $translations = array(
 	'Save and insert next' => 'Uložit a vložit další',
 	'Clone' => 'Klonovat',
 	'Delete' => 'Smazat',
+	'You have no privileges to update this table.' => 'Nemáte oprávnění editovat tuto tabulku.',
 	
 	'E-mail' => 'E-mail',
 	'From' => 'Odesílatel',

adminer/lang/xx.inc.php

@@ -263,6 +263,7 @@ $translations = array(
 	'Save and insert next' => 'xx',
 	'Clone' => 'xx',
 	'Delete' => 'xx',
+	'You have no privileges to update this table.' => 'xx',
 	
 	'E-mail' => 'xx',
 	'From' => 'xx',