}
	_, werr := w.Write(output)
	return werr
}

// WriteCoverMetaFilesFile writes out a summary file ("meta-files
// file") as part of the action function for the "writeCoverMeta"
// pseudo action employed during "go test -coverpkg" runs where there
// are multiple tests and multiple packages covered. It builds up a
// table mapping package import path to meta-data file fragment and

			// package "a" build) to the package "c" run action, so
			// that it can be incorporated with "c"'s regular
			// metadata. To do this, we add edges from each compile
			// action to a "writeCoverMeta" action, then from the
			// writeCoverMeta action to each run action. Updated
			// graph:
			//
			//	build("a")       build("b")         build("c")
			//	    |   \       /   |               /   |