bison.m4 isn't installed

[Paul Eggert]

The recent addition of bison.m4 requires another change, for that file
to be installed properly with "make install".  I installed this:

2006-10-12  Paul Eggert  <address@hidden>

        * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
        accommodates the 2006-10-08 change.

Index: data/Makefile.am
===================================================================
RCS file: /cvsroot/bison/bison/data/Makefile.am,v
retrieving revision 1.14
diff -u -r1.14 Makefile.am
--- data/Makefile.am    15 Sep 2006 15:56:26 -0000      1.14
+++ data/Makefile.am    12 Oct 2006 22:40:35 -0000
@@ -15,7 +15,7 @@
 ## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 ## 02110-1301  USA

-dist_pkgdata_DATA = README \
+dist_pkgdata_DATA = README bison.m4 \
    c.m4 yacc.c glr.c push.c \
    c++.m4 location.cc lalr1.cc glr.cc