[gtk-osx] Roll back freetype to 2.9.1

[John Ralls <jralls src gnome org>]

commit 28366b78eb4f072063482f42087e0793fe16ba97
Author: John Ralls <jralls ceridwen us>
Date:   Tue Dec 3 16:41:09 2019 -0800

    Roll back freetype to 2.9.1
    
    2.10.1 crashed in GnuCash 3.7, see
    https://bugs.gnucash.org/show_bug.cgi?id=797461. Reporter said
    that GnuCash 3.6, built with freetype 2.9.1, didn't crash.

 modulesets-stable/gtk-osx-bootstrap.modules | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/modulesets-stable/gtk-osx-bootstrap.modules b/modulesets-stable/gtk-osx-bootstrap.modules
index 997d9ff..ea02380 100644
--- a/modulesets-stable/gtk-osx-bootstrap.modules
+++ b/modulesets-stable/gtk-osx-bootstrap.modules
@@ -159,7 +159,7 @@
   <autotools id="freetype" autogen-sh="configure"
              skip-autogen="never"
              autogenargs="--without-bzip2 --without-harfbuzz">
-    <branch module="freetype/freetype-2.10.1.tar.gz" version="2.10.1"
+    <branch module="freetype/freetype-2.9.1.tar.gz" version="2.9.1"
             repo="sourceforge">
     </branch>
     <dependencies>