cti header formats memory leak

Both CTFinitialize and GLOBinitializeGlobal set

global.cti_primary_header_format = STRcpy (CTF_DEFAULT_FIRST_LINE_HEADER); and global.cti_continuation_header_format = STRcpy (CTF_DEFAULT_MULTI_LINE_HEADER);

static node *
SetupCompiler (int argc, char *argv[], tool_t tool, char *toolname)
{
    DBUG_ENTER ();
    ...
    CTFinitialize ();
    ...
    GLOBinitializeGlobal (argc, argv, tool, toolname);
    ...

This creates a memory leak. I think we just move CTFinitialize to after the global initalisation.

Also

    ARGS_OPTION ("cti-primary-header-format", global.cti_primary_header_format = STRcpy (ARG));

in options.c looks shady. Should we not optionally free first?