* tests/Makefile.am, tests/nodeinfotest.c, tests/qemuxml2argvtest.c,
	  tests/qemuxml2xmltest.c, tests/sexpr2xmltest.c, tests/virshtest.c,
	  tests/xencapstest.c, tests/xmconfigtest.c, tests/xml2sexprtest.c:
	  Miscellaneous fixes to the tests to compile under Cygwin.