go through each function and see what I can clean

[todo]

kata-go/basicApps/dijkstra/main.go

Lines 20 to 25 in c946396

	// TODO go through each function and see what I can clean
	// ReadString will take a filename and return the contents as a string
	func ReadString(file string) string {
	data, err := ioutil.ReadFile(file)
	if err != nil {

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This issue was generated by todo based on a TODO comment in c946396. It's been assigned to @marjamis because they committed the code.