Use tabs as the canonical source indentation in git

Space conversion is done during generation only. Fixes #192

examples/structs/structs.go

@@ -8,34 +8,34 @@ import "fmt"
 
 // This `person` struct type has `name` and `age` fields.
 type person struct {
-    name string
-    age  int
+	name string
+	age  int
 }
 
 func main() {
 
-    // This syntax creates a new struct.
-    fmt.Println(person{"Bob", 20})
+	// This syntax creates a new struct.
+	fmt.Println(person{"Bob", 20})
 
-    // You can name the fields when initializing a struct.
-    fmt.Println(person{name: "Alice", age: 30})
+	// You can name the fields when initializing a struct.
+	fmt.Println(person{name: "Alice", age: 30})
 
-    // Omitted fields will be zero-valued.
-    fmt.Println(person{name: "Fred"})
+	// Omitted fields will be zero-valued.
+	fmt.Println(person{name: "Fred"})
 
-    // An `&` prefix yields a pointer to the struct.
-    fmt.Println(&person{name: "Ann", age: 40})
+	// An `&` prefix yields a pointer to the struct.
+	fmt.Println(&person{name: "Ann", age: 40})
 
-    // Access struct fields with a dot.
-    s := person{name: "Sean", age: 50}
-    fmt.Println(s.name)
+	// Access struct fields with a dot.
+	s := person{name: "Sean", age: 50}
+	fmt.Println(s.name)
 
-    // You can also use dots with struct pointers - the
-    // pointers are automatically dereferenced.
-    sp := &s
-    fmt.Println(sp.age)
+	// You can also use dots with struct pointers - the
+	// pointers are automatically dereferenced.
+	sp := &s
+	fmt.Println(sp.age)
 
-    // Structs are mutable.
-    sp.age = 51
-    fmt.Println(sp.age)
+	// Structs are mutable.
+	sp.age = 51
+	fmt.Println(sp.age)
 }