Merge branch 'maint'

* maint:
  maintcheck: avoid failures, sync with 'ng/master' more
  maintcheck: remove 'sc_perl_syntax'
  sync: update files from upstream with "make fetch"
  maint: get rid of $perllibdir environment variable hack
  configure: respect the '-q' option better
  cosmetics: de-tabify configure.ac

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --cc NEWS
Simple merge

diff --cc aclocal.in
Simple merge

diff --cc automake.in
Simple merge

diff --cc configure.ac
Simple merge

diff --cc syntax-checks.mk
Simple merge