* addr2line.c (parse_debug_line_cu): explicitly specify signed char
  because DWARF's line_Base is signed char and char maybe unsigned.
  patched by Rei Odaira. [ruby-dev:48068] [Bug #9654]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45391 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-03-24

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45392 b2dd03c8-39d4-4d8f-98ff-823fe69b080e