Updating comments.

Author: qiongsiwu

clang/tools/libclang/CXString.h

@@ -67,9 +67,12 @@ CXString createRef(std::string String) = delete;
 /// Create a CXString object that is backed by a string buffer.
 CXString createCXString(CXStringBuf *buf);
 
-/// Create a CXStringSet object owns the strings. Such an object should be
+/// Create a CXStringSet object that owns the strings. Such an object should be
 /// disposed with clang_disposeStringSet.
 CXStringSet *createSet(const std::vector<std::string> &Strings);
+
+/// Create a CXStringSet object that does not own the strings. Such an object
+/// should still be disposed with clang_disposeStringSet.
 CXStringSet *createRefSet(ArrayRef<StringRef> Strings);
 
 /// A string pool used for fast allocation/deallocation of strings.
@@ -108,4 +111,3 @@ static inline StringRef getContents(const CXUnsavedFile &UF) {
 }
 
 #endif
-