[libxml2] Add 'fuzz' subdirectory to DIST_SUBDIRS

[Nick Wellnhofer <nwellnhof src gnome org>]

commit 1bde104060b52a001026e505f89dca9f3bb36135
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Sun Oct 25 20:02:23 2020 +0100

    Add 'fuzz' subdirectory to DIST_SUBDIRS
    
    Fixes #191.

 Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/Makefile.am b/Makefile.am
index 76a834efb..0655dfd59 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -4,7 +4,7 @@ ACLOCAL_AMFLAGS = -I m4
 
 SUBDIRS = include . doc example fuzz xstc $(PYTHON_SUBDIR)
 
-DIST_SUBDIRS = include . doc example python xstc
+DIST_SUBDIRS = include . doc example fuzz python xstc
 
 AM_CPPFLAGS = -I$(top_builddir)/include -I$(srcdir)/include