Typo: legeng ==> legend

Change-Id: I7396b8cada25e2fab68330251eaa2e453eb96bf4
update fileio tests 3663 and 4467 to take care of Windows configuration

Change-Id: I9cccc4e61e82cf85c2c162ee6b10e026e60bc683
remove dependendy on libst, rewrite mgeti and mputi to follow documentation

test_run("fileio",["mgeti","mputi"])

Change-Id: If2f9231e494dfa20cb2850bf8bfe72344db15ec0