Add stdspecialchars.inc to Makefile.am

This might fix 'make distcheck' (at least for me), which was failing
with a mysterious error message:

  cannot remove ‘../../po/lyx.pot’: Permission denied

For discussion, see:

  https://www.mail-archive.com/search?l=mid&q=20151125075443.GA7491%40cotopaxi.hsd1.dc.comcast.net

I write "might" because I have no idea why in theory it would. But
for whatever reason it worked when I tested.

diff --git a/lib/Makefile.am b/lib/Makefile.am
index 7ca8bc6a743b1245c551ef2b7cca266d5cbf9867..f06e32fa75b33237b0d32e15a053314babcd29d0 100644 (file)
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -2124,6 +2124,7 @@ dist_layouts_DATA =\
        layouts/stdlyxlist.inc \
        layouts/stdrefprefix.inc \
        layouts/stdsections.inc \
+       layouts/stdspecialchars.inc \
        layouts/stdstarsections.inc \
        layouts/stdstruct.inc \
        layouts/stdtitle.inc \