Give a proper error message when a command line option is defined more than
once (ie, at two different places in the source, not two times on the
commandline).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51771 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/CommandLine.cpp b/lib/Support/CommandLine.cpp
index 412dcb6..571b033 100644
--- a/lib/Support/CommandLine.cpp
+++ b/lib/Support/CommandLine.cpp
@@ -120,7 +120,7 @@
       if (!OptionsMap.insert(std::pair<std::string,Option*>(OptionNames[i],
                                                             O)).second) {
         cerr << ProgramName << ": CommandLine Error: Argument '"
-             << OptionNames[0] << "' defined more than once!\n";
+             << OptionNames[i] << "' defined more than once!\n";
       }
     }