[Object] keep trailing '\0' out of StringRef when parsing mach-o bindings

llvm-svn: 217935
diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp
index 94fa94c..cc11244 100644
--- a/llvm/lib/Object/MachOObjectFile.cpp
+++ b/llvm/lib/Object/MachOObjectFile.cpp
@@ -1957,9 +1957,9 @@
       while (*Ptr) {
         ++Ptr;
       }
-      ++Ptr;
       SymbolName = StringRef(reinterpret_cast<const char*>(SymStart),
                              Ptr-SymStart);
+      ++Ptr;
       DEBUG_WITH_TYPE(
           "mach-o-bind",
           llvm::dbgs() << "BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM: "