merge revision(s) 39504: [Backport #7942]

	* parse.y (IS_LABEL_POSSIBLE): allow labels for keyword arguments just
	  after method definition without a parenthesis.  [ruby-core:52820]
	  [Bug #7942]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39708 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 39506,39514: [Backport #7959]

	* configure.in (unexpand_shvar): get rid of non-portable shell
	  behavior on OpenBSD, so no extra quotes.  [Bug #7959]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39709 b2dd03c8-39d4-4d8f-98ff-823fe69b080e