lib/AST/StmtViz.cpp

46     std::string OutStr = Out.str();
47     if (OutStr[0] == '\n') OutStr.erase(OutStr.begin());
50     for (unsigned i = 0; i != OutStr.length(); ++i)
51       if (OutStr[i] == '\n') {                            // Left justify
52         OutStr[i] = '\\';
53         OutStr.insert(OutStr.begin()+i+1, 'l');
56     return OutStr;