[NFC] Tweak OptionsUtils

diff --git a/clang-tools-extra/clang-tidy/utils/OptionsUtils.cpp b/clang-tools-extra/clang-tidy/utils/OptionsUtils.cpp
index 8a7f1c3..25677fa 100644 (file)
--- a/clang-tools-extra/clang-tidy/utils/OptionsUtils.cpp
+++ b/clang-tools-extra/clang-tidy/utils/OptionsUtils.cpp
@@ -22,13 +22,13 @@ std::vector<std::string> parseStringList(StringRef Option) {
   for (StringRef &Name : Names) {
     Name = Name.trim();
     if (!Name.empty())
-      Result.push_back(std::string(Name));
+      Result.emplace_back(Name);
   }
   return Result;
 }
 
 std::string serializeStringList(ArrayRef<std::string> Strings) {
-  return llvm::join(Strings.begin(), Strings.end(), StringsDelimiter);
+  return llvm::join(Strings, StringsDelimiter);
 }
 
 } // namespace options