[coretext] Properly check for macOS 10.10

Fixes https://github.com/harfbuzz/harfbuzz/issues/2452

src/hb-coretext.cc

diff --git a/src/hb-coretext.cc b/src/hb-coretext.cc
index 76e00fd..7b6b2bd 100644
--- a/src/hb-coretext.cc
+++ b/src/hb-coretext.cc
@@ -514,7 +514,7 @@
     {
       active_feature_t feature;
 
-#if MAC_OS_X_VERSION_MIN_REQUIRED < 1010
+#if MAC_OS_X_VERSION_MIN_REQUIRED < 101000
       const hb_aat_feature_mapping_t * mapping = hb_aat_layout_find_feature_mapping (features[i].tag);
       if (!mapping)
 	continue;
@@ -573,7 +573,7 @@
 	  /* active_features.qsort (); */
 	  for (unsigned int j = 0; j < active_features.length; j++)
 	  {
-#if MAC_OS_X_VERSION_MIN_REQUIRED < 1010
+#if MAC_OS_X_VERSION_MIN_REQUIRED < 101000
 	    CFStringRef keys[] = {
 	      kCTFontFeatureTypeIdentifierKey,
 	      kCTFontFeatureSelectorIdentifierKey