* thread_pthread.c (reserve_stack): fix reserving position where
	  the stack growing bottom to top. [Bug #12118]

	* localeinit.c (rb_locale_charmap_index): fix prototype.
	  patched by Andreas Schwab [Bug #12218]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@54425 b2dd03c8-39d4-4d8f-98ff-823fe69b080e