fix typos

misc.go

@@ -101,7 +101,7 @@ func SetMxjCast(b ...bool) {
 // HasTags is a convenience function that takes the result slice from MissingTags
 // or UnknownTags and returns "true, nil" if the dot-notation 'check' values are
 // in the slice.  If one or more of the 'check' values are not in the 'result' slice
-// the return value will be "false, []string" where the slice of string values are
+// the return value will be "false, []string" where the slice of string values is
 // the 'check' values that are not in 'result'.
 func HasTags(result []string, check ...string) (bool, []string) {
 	r := make(map[string]bool, len(result))

unknowntags.go

@@ -313,7 +313,7 @@ func checkAllTags(mv interface{}, val reflect.Value, s *[]string, key string) er
 		if tag[0] == "-" {
 			tag = []string{""}
 		}
-		// See if struct member is represents an attribute value.
+		// See if struct member is an attribute value.
 		for _, v := range tags[1:] {
 			if v == "attr" {
 				attr = true