Ruby » Ruby master

merges r31152 and r31154 from trunk into ruby_1_9_2.¶

• win32/win32.c: wait process real termination after reading
  exit code. fixes #4518
  --
• win32/win32.c: fix r31152 (dup line)

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@31789 b2dd03c8-39d4-4d8f-98ff-823fe69b080e