[LyX/master] Tweak nod Makefile

[Jean-Marc Lasgouttes]

commit 425a846b1474cba1c6ffb3328b2d052048a5a30e
Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
Date:   Mon Dec 14 18:58:40 2020 +0100

    Tweak nod Makefile
    
    There is no inner nod/ directory. We could, but it is probably not worth it.
---
 3rdparty/nod/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/3rdparty/nod/Makefile.am b/3rdparty/nod/Makefile.am
index d1285c4..9486f8c 100644
--- a/3rdparty/nod/Makefile.am
+++ b/3rdparty/nod/Makefile.am
@@ -1,4 +1,4 @@
 include $(top_srcdir)/config/common.am
 
-EXTRA_DIST = nod \
+EXTRA_DIST = nod.hpp \
 	README.md