Merge branch 'maint'

* maint:
  tests: adjust stale references to old test names
  tests: rename the last aclocal test with dumb name
  tests: fix an old botched change to an aclocal test
  tests: fix some botched inter-test references in heading comments
  coverage: compile rules used "-c -o" also with losing compilers
  texi: remove extra verbosity in creation of dirstamp directory
  coverage: user can avoid distributing '.info' pages
  plans: add some on-going plans (already registered on the bug tracker)
  docs: mention dist-hook help for EXTRA_DIST
  texi: remove workaround for older Texinfo (4.1)
  NEWS: improve wordings in entry deprecating suffix-less info files
  plans: add the "PLANS" directory

diff --cc Makefile.am
Simple merge

diff --cc NEWS
Simple merge

diff --cc doc/automake.texi
Simple merge

diff --cc lib/am/texibuild.am
Simple merge

diff --cc t/list-of-tests.mk
Simple merge

diff --cc t/remake-renamed-m4-macro-and-file.sh
Simple merge