[clang-diff] Refactor stop-after command-line flag

Summary:
Rename stop-after to stop-diff-after. When building LLVM with
-DLLVM_BUILD_LLVM_DYLIB=ON, stop-after collides with the stop-after
already present in LLVM.

Reviewers: johannes, arphaman

Subscribers: klimek, aheejin, cfe-commits

Differential Revision: https://reviews.llvm.org/D36989

llvm-svn: 311476

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/tools/clang-diff/ClangDiff.cpp b/clang/tools/clang-diff/ClangDiff.cpp
index 3f1980c7020..7237e8c1af0 100644
--- a/clang/tools/clang-diff/ClangDiff.cpp
+++ b/clang/tools/clang-diff/ClangDiff.cpp
@@ -50,7 +50,7 @@ static cl::opt<std::string> DestinationPath(cl::Positional,
                                             cl::Optional,
                                             cl::cat(ClangDiffCategory));
 
-static cl::opt<std::string> StopAfter("stop-after",
+static cl::opt<std::string> StopAfter("stop-diff-after",
                                       cl::desc("<topdown|bottomup>"),
                                       cl::Optional, cl::init(""),
                                       cl::cat(ClangDiffCategory));