Run "go fmt" on all .go files

about_interfaces.go

@@ -1,48 +1,48 @@
 package go_koans
 
 func aboutInterfaces() {
-  bob := new(human)     // bob is a kind of *human
-  rspec := new(program) // rspec is a kind of *program
+	bob := new(human)     // bob is a kind of *human
+	rspec := new(program) // rspec is a kind of *program
 
-  assert(runner(bob) == __runner__) // conformed interfaces need not be declared, they are inferred
+	assert(runner(bob) == __runner__) // conformed interfaces need not be declared, they are inferred
 
-  assert(bob.milesCompleted == 0)
-  assert(rspec.executionCount == 0)
+	assert(bob.milesCompleted == 0)
+	assert(rspec.executionCount == 0)
 
-  runTwice(bob)   // bob fits the profile for a 'runner'
-  runTwice(rspec) // rspec also fits the profile for a 'runner'
+	runTwice(bob)   // bob fits the profile for a 'runner'
+	runTwice(rspec) // rspec also fits the profile for a 'runner'
 
-  assert(bob.milesCompleted == __int__)   // bob is affected by running in his own unique way (probably fatigue)
-  assert(rspec.executionCount == __int__) // rspec can run completely differently than bob, thanks to interfaces
+	assert(bob.milesCompleted == __int__)   // bob is affected by running in his own unique way (probably fatigue)
+	assert(rspec.executionCount == __int__) // rspec can run completely differently than bob, thanks to interfaces
 }
 
 // abstract interface and function that requires it
 
 type runner interface {
-  run()
+	run()
 }
 
 func runTwice(r runner) {
-  r.run()
-  r.run()
+	r.run()
+	r.run()
 }
 
 // concrete type implementing the interface
 
 type human struct {
-  milesCompleted int
+	milesCompleted int
 }
 
 func (self *human) run() {
-  self.milesCompleted++
+	self.milesCompleted++
 }
 
 // another concrete type implementing the interface
 
 type program struct {
-  executionCount int
+	executionCount int
 }
 
 func (self *program) run() {
-  self.executionCount++
+	self.executionCount++
 }