[llvm] [NFC][Support] Create helper function to parse bool. (PR #102818)

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git-clang-format --diff 5286656609418c766272ff78e62fda41671ef4cb f2de3bbfa2ecbc97341c6e5aa63d2f09f91c9d66 --extensions cpp -- llvm/lib/Support/CommandLine.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Support/CommandLine.cpp b/llvm/lib/Support/CommandLine.cpp
index a5f1c069d0..2ef2e58b65 100644
--- a/llvm/lib/Support/CommandLine.cpp
+++ b/llvm/lib/Support/CommandLine.cpp
@@ -400,7 +400,7 @@ private:
   SubCommand *LookupSubCommand(StringRef Name, std::string &NearestString);
 };
 
-template < typename T, T TrueVal, T FalseVal>
+template <typename T, T TrueVal, T FalseVal>
 bool parseBool(Option &O, StringRef ArgName, StringRef Arg, T &Value) {
   if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" ||
       Arg == "1") {

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https://github.com/llvm/llvm-project/pull/102818