* test/lib/test/unit.rb (Options#non_options): make regexp name
	  options prefixed with "!" negative filters.

	* common.mk (TEST_EXCLUDES): use negative filter to exclude memory
	  leak tests.  -x option excludes test files, not test methods.

	* common.mk (TEST_EXCLUDES, EXCLUDE_TESTFRAMEWORK): use full spell
	  long option.

	* cygwin/GNUmakefile.in (MSYS2_ARG_CONV_EXCL): suppress path name
	  conversions by msys2.  [ruby-dev:49525] [Bug #12199]

	* cygwin/GNUmakefile.in (MSYS2_ARG_CONV_EXCL_PARAM):
	  * add missing parentheses and remove double quotes.
	  * rename to get rid of recursive references.
	  * as --excludes-dir option is for a path name, its argument
	    should be converted.
	  [ruby-dev:49526] [Bug #12199]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@54627 b2dd03c8-39d4-4d8f-98ff-823fe69b080e