Fix marshaling of leading and trailing whitespace #792
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Before submitting your PR, please confirm the following.
Current go-yaml will marshal
map[string]string{"a": "\tvalue"}as"a: \tvalue"(that is, a literal tab character). Unmarshaling that producesmap[string]string{"a": "value"}instead of the original map.In addition to fixing leading tabs and leading newlines, I also changed
TestYAMLTestSuiteto round-trip every value to make sure that they can be properly marshaled and unmarshaled without changing the value. This uncovered several broken test cases. All but one are fixed by this PR, since that last one doesn't (primarily, at least) involve whitespace.