Log Message:-----------Add SGML 'check-tabs' Makefile rule to check for tabs.
Modified Files:-------------- pgsql/doc/src/sgml: Makefile (r1.135 -> r1.136) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/Makefile?r1=1.135&r2=1.136)
