Replace global std::string with const char[]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174332 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-symbolizer/LLVMSymbolize.cpp b/tools/llvm-symbolizer/LLVMSymbolize.cpp
index 1b0ece5..42e76f8 100644
--- a/tools/llvm-symbolizer/LLVMSymbolize.cpp
+++ b/tools/llvm-symbolizer/LLVMSymbolize.cpp
@@ -132,7 +132,7 @@
   return false;
 }
 
-const std::string LLVMSymbolizer::kBadString = "??";
+const char LLVMSymbolizer::kBadString[] = "??";
 
 std::string LLVMSymbolizer::symbolizeCode(const std::string &ModuleName,
                                           uint64_t ModuleOffset) {