[FYI] Merge branch 'maint' into master

[Stefano Lattarini]

commit 97d770d69c3522beab5aec18d135d84b3b5eb449
Merge: db64467 fe05207
Author: Stefano Lattarini <address@hidden>
Date:   Wed Jan 2 14:45:42 2013 +0100

    Merge branch 'maint'

    * maint:
      tests: reorganize tests on backslash issues
      style: add trailing ':' to some test cases
      tests: tweak tests on obsolete EXTRA_DATA variable
      tests: more significant names for some tests
      cosmetics: remove few occurrences of trailing whitespace
      docs: re-introduce mention of two-args AM_INIT_AUTOMAKE invocation
      texi: warn against '.txi' and '.texinfo' input suffixes
      cleanup: remove two lines of dead code in automake
      texi: warn against suffix-less info files
      build: respect silent rules in generation of "amhello" example tarball