thread.c (subtract_tv): if the rest is zero, should finish waiting immediately.
win32/win32.c (subtract): ditto. based on a patch from Roger Pack in [ruby-core:27957].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@27975 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r27930 from trunk into ruby_1_9_2.¶
thread.c (subtract_tv): if the rest is zero, should finish waiting
immediately.
win32/win32.c (subtract): ditto.
based on a patch from Roger Pack in [ruby-core:27957].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@27975 b2dd03c8-39d4-4d8f-98ff-823fe69b080e