master updated (b1d3e9211d -> add50f7cd8)

[Gavin D. Smith]

gavin pushed a change to branch master.

    from b1d3e9211d Fix both parsers to do the same tree with empty menu entry 
nodes
     new 7f32763d96 Fix segfault for empty contents
     new add50f7cd8 Reinstate empty contents


Summary of changes:
 ChangeLog                                          | 34 +++++++++++++++++
 tp/Texinfo/Common.pm                               |  8 ++--
 tp/Texinfo/ParserNonXS.pm                          | 25 ++++++------
 tp/Texinfo/XS/misc.c                               | 44 +++++++++++-----------
 tp/Texinfo/XS/parsetexi/end_line.c                 |  5 +--
 .../sectioning/in_menu_only_special_spaces_node.pl |  2 +
 6 files changed, 76 insertions(+), 42 deletions(-)