18446: change name of keyset back to 'keyset'. r=danm (actually, this is his change), a=chofmann

xpfe/global/resources/content/unix/platformDialogOverlay.xul

@@ -40,7 +40,7 @@
 		<spring flex="100%"/>
 	</box>
 	
-	<keyset id="unixdialogkeyset">
+	<keyset id="keyset">
 		<key keycode="VK_ENTER" oncommand="doOKButton()"/>
 		<key keycode="VK_RETURN" oncommand="doOKButton()"/>
 		<key keycode="VK_ESCAPE" oncommand="doCancelButton()"/>