Fix typo.

Reported by Behdad.

* src/base/ftcolor.c (FT_Palette_Data_Get)
[!TT_CONFIG_OPTION_COLOR_LAYERS]: s/apalette/apalette_data/.
diff --git a/ChangeLog b/ChangeLog
index 12e8468..06df64e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2018-06-23  Werner Lemberg  <wl@gnu.org>
+
+	Fix typo.
+
+	Reported by Behdad.
+
+	* src/base/ftcolor.c (FT_Palette_Data_Get)
+	[!TT_CONFIG_OPTION_COLOR_LAYERS]: s/apalette/apalette_data/.
+
 2018-06-21  Werner Lemberg  <wl@gnu.org>
 
 	s/FT_PALETTE_USABLE_WITH_/FT_PALETTE_FOR_/.
diff --git a/src/base/ftcolor.c b/src/base/ftcolor.c
index acde08b..1c8b309 100644
--- a/src/base/ftcolor.c
+++ b/src/base/ftcolor.c
@@ -119,7 +119,7 @@
                        FT_Palette_Data  *apalette_data )
   {
     FT_UNUSED( face );
-    FT_UNUSED( apalette );
+    FT_UNUSED( apalette_data );
 
 
     return FT_THROW( Unimplemented_Feature );