[clang-format] Preserve spaces before a percent in (text) protos

This makes sure that we do not change the meaning of pieces of text with
format specifiers.

llvm-svn: 329263

1 files changed, 3 insertions, 1 deletions

diff --git a/clang/unittests/Format/FormatTestProto.cpp b/clang/unittests/Format/FormatTestProto.cpp
index 672fd5914d0..4b1480b074a 100644
--- a/clang/unittests/Format/FormatTestProto.cpp
+++ b/clang/unittests/Format/FormatTestProto.cpp
@@ -442,9 +442,11 @@ TEST_F(FormatTestProto, FormatsOptionsExtensions) {
                "};");
 }
 
-TEST_F(FormatTestProto, NoSpaceAfterPercent) {
+TEST_F(FormatTestProto, SpacesAroundPercents) {
   verifyFormat("option (MyProto.options) = {\n"
                "  key: %lld\n"
+               "  key: 0x%04x\n"
+               "  key: \"%d %d\"\n"
                "};");
 }