fix unintended whitespace change

Author: Carl Peto

lib/Basic/LangOptions.cpp

@@ -572,11 +572,11 @@ std::pair<bool, bool> LangOptions::setTarget(llvm::Triple triple) {
   }
 
   // Set the "_pointerBitWidth" platform condition.
-    if (Target.isArch32Bit()) {
-      addPlatformConditionValue(PlatformConditionKind::PointerBitWidth, "_32");
-    } else if (Target.isArch64Bit()) {
-      addPlatformConditionValue(PlatformConditionKind::PointerBitWidth, "_64");
-    }
+  if (Target.isArch32Bit()) {
+    addPlatformConditionValue(PlatformConditionKind::PointerBitWidth, "_32");
+  } else if (Target.isArch64Bit()) {
+    addPlatformConditionValue(PlatformConditionKind::PointerBitWidth, "_64");
+  }
 
   // Set the "runtime" platform condition.
   addPlatformConditionValue(PlatformConditionKind::Runtime,