// RUN: sed 's/placeholder_for_f/f/' %s > %t.cpp
// RUN: clang-tidy -checks=-*,misc-use-override %t.cpp -- -std=c++11 | FileCheck -check-prefix=CHECK-SANITY %s
-// RUN: not diff -u0 %s %t.cpp | python %S/../../clang-tidy/tool/clang-tidy-diff.py -checks=-*,misc-use-override -- -std=c++11 2>&1 | FileCheck %s
+// RUN: not diff -U0 %s %t.cpp | python %S/../../clang-tidy/tool/clang-tidy-diff.py -checks=-*,misc-use-override -- -std=c++11 2>&1 | FileCheck %s
struct A {
virtual void f() {}
virtual void g() {}