[NFC][tests] Replace use of GNUisms in usage of diff

... the POSIX options suffice.

This maintains compatibility with the system `diff` on platforms
like AIX.

diff --git a/clang/test/APINotes/yaml-roundtrip-2.test b/clang/test/APINotes/yaml-roundtrip-2.test
index 0245530..b0b777b 100644 (file)
--- a/clang/test/APINotes/yaml-roundtrip-2.test
+++ b/clang/test/APINotes/yaml-roundtrip-2.test
@@ -1,8 +1,8 @@
 RUN: apinotes-test %S/Inputs/Frameworks/SimpleKit.framework/Headers/SimpleKit.apinotes > %t.result
-RUN: not diff --strip-trailing-cr --ed %t.result %S/Inputs/Frameworks/SimpleKit.framework/Headers/SimpleKit.apinotes | FileCheck %s
+RUN: not diff -b -e %t.result %S/Inputs/Frameworks/SimpleKit.framework/Headers/SimpleKit.apinotes | FileCheck %s
 
-The `--ed` parameter to `diff` is not implemented in the builtin diff, assume
-that we have a GNU compatible diff when we have a shell.
+The `-e` option of `diff` is not implemented in the builtin diff, assume
+that we have a POSIX compatible diff when we have a shell.
 REQUIRES: shell
 
 We expect only the document markers to be emitted

diff --git a/clang/test/APINotes/yaml-roundtrip.test b/clang/test/APINotes/yaml-roundtrip.test
index bd4c89d..bcf84af 100644 (file)
--- a/clang/test/APINotes/yaml-roundtrip.test
+++ b/clang/test/APINotes/yaml-roundtrip.test
@@ -1,5 +1,5 @@
 RUN: apinotes-test %S/Inputs/Frameworks/Simple.framework/Headers/Simple.apinotes > %t.result
-RUN: not diff --strip-trailing-cr %S/Inputs/Frameworks/Simple.framework/Headers/Simple.apinotes %t.result | FileCheck %s
+RUN: not diff -b %S/Inputs/Frameworks/Simple.framework/Headers/Simple.apinotes %t.result | FileCheck %s
 
 Avoid Windows as the diff output differs due to line-endings and different diff
 implementations.