clean up the OVERVIEW line in clang --help.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66250 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/clang.cpp b/Driver/clang.cpp
index 5f8bb36..e15ae3e 100644
--- a/Driver/clang.cpp
+++ b/Driver/clang.cpp
@@ -1560,9 +1560,10 @@
 
 
 int main(int argc, char **argv) {
-  llvm::cl::ParseCommandLineOptions(argc, argv, " llvm clang cfe\n");
   llvm::sys::PrintStackTraceOnErrorSignal();
   llvm::PrettyStackTraceProgram X(argc, argv);
+  llvm::cl::ParseCommandLineOptions(argc, argv,
+                              "LLVM 'Clang' frontend: http://clang.llvm.org\n");
   
   if (TimeReport)
     ClangFrontendTimer = new llvm::Timer("Clang front-end time");