main/openldap: fix build with autoconf-2.71
It also needed for !24084 (merged)
Fixes
libtool: link: ( cd ".libs" && rm -f "lastbind.la" && ln -s "../lastbind.la" "lastbind.la" )
make: Leaving directory '/builds/alpine/aports/main/openldap/src/openldap-2.4.59/contrib/slapd-modules/lastbind'
autoreconf: warning: autoconf input should be named 'configure.ac', not 'configure.in'
aclocal: warning: autoconf input should be named 'configure.ac', not 'configure.in'
configure.in:13: error: AC_INIT should be called with package and version arguments
/usr/share/aclocal-1.16/init.m4:29: AM_INIT_AUTOMAKE is expanded from...
configure.in:13: the top level
autom4te: error: /usr/bin/m4 failed with exit status: 1
aclocal: error: /usr/bin/autom4te failed with exit status: 1
autoreconf: error: aclocal failed with exit status: 1
>>> ERROR: openldap: build failed
Edited by Andy Postnikov