Add test for multiple linters

Author: ashanbrown

test/testdata/fix/in/nolintlint.go

@@ -7,7 +7,10 @@ import "fmt"
 func nolintlint() {
 	fmt.Println() // nolint:bob // leading space should be dropped
 	fmt.Println() //  nolint:bob // leading spaces should be dropped
+
 	// note that the next lines will retain trailing whitespace when fixed
 	fmt.Println() //nolint // nolint should be dropped
 	fmt.Println() //nolint:lll // nolint should be dropped
+
+	fmt.Println() //nolint:alice,lll // we don't drop individual linters from lists
 }

test/testdata/fix/out/nolintlint.go

@@ -7,7 +7,10 @@ import "fmt"
 func nolintlint() {
 	fmt.Println() //nolint:bob // leading space should be dropped
 	fmt.Println() //nolint:bob // leading spaces should be dropped
+
 	// note that the next lines will retain trailing whitespace when fixed
 	fmt.Println() 
 	fmt.Println() 
+
+	fmt.Println() //nolint:alice,lll // we don't drop individual linters from lists
 }