Unindent the #if.

Tests/ResultTests.swift

@@ -388,11 +388,11 @@ class ResultTestCase: BaseTestCase {
         result.withError { string = "\(type(of: $0))" }
         
         // Then
-        #if swift(>=3.2)
+    #if swift(>=3.2)
         XCTAssertEqual(string, "ResultError #1")
-        #else
+    #else
         XCTAssertEqual(string, "(ResultError #1)")
-        #endif
+    #endif
     }
     
     func testWithErrorDoesNotExecuteWhenSuccess() {