Tweak font height of Emacs 24.4 Mac port

tweak-font-height.patch

diff --git a/src/macfont.m b/src/macfont.m
index 69bde9f..f18738c 100644
--- a/src/macfont.m
+++ b/src/macfont.m
@@ -2581,8 +2581,11 @@ macfont_open (struct frame * f, Lisp_Object entity, int pixel_size)
 	    ascent += (ascent + descent) * .15f;
 	  else if (CFStringHasPrefix (family_name, CFSTR ("Hiragino")))
 	    {
-	      leading *= .25f;
-	      ascent += leading;
+	      leading = 0;
+	    }
+	  else if (CFEqual (family_name, CFSTR ("Menlo")))
+	    {
+	      ascent += 0.5f;
 	    }
 	  CFRelease (family_name);
 	}