alexshap added inline comments.
================
Comment at: change-namespace/tool/ClangChangeNamespace.cpp:48
@@ +47,3 @@
+
+cl::opt<std::string> OldNamespace("old_namespace", cl::desc("Old namespace."),
+ cl::cat(ChangeNamespaceCategory));
----------------
probably you need to add cl::Required
cl::opt<std::string> OldNamespace("old_namespace", cl::Required,
cl::desc("Old namespace."),
cl::cat(ChangeNamespaceCategory));
and the same for NewNamespace.
https://reviews.llvm.org/D24183
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