[Sema] Attempt [3] to fix tests for utf-8 invalid format string specifiers
Make the tests darwin only. The bots complaining already output UTF-8
invalid specifiers, test the output as we expect on darwin systems.
llvm-svn: 264788
diff --git a/clang/test/SemaObjC/format-strings-utf8.m b/clang/test/SemaObjC/format-strings-utf8.m
index 5a26303..d4c21b1 100644
--- a/clang/test/SemaObjC/format-strings-utf8.m
+++ b/clang/test/SemaObjC/format-strings-utf8.m
@@ -1,3 +1,4 @@
+// REQUIRES: system-darwin
// RUN: rm -f %t.log
// RUN: env RC_DEBUG_OPTIONS=1 \
// RUN: CC_LOG_DIAGNOSTICS=1 CC_LOG_DIAGNOSTICS_FILE=%t.log \