Silence some compiler warnings.  The const on return-by-value is ignored.
Silence some compiler warnings.  The const on return-by-value is ignored.

eile/tclap,mjkoo/tclap,Qointum/tclap,eile/tclap,xguerin/tclap,mjkoo/tclap,ufz/tclap,xguerin/tclap,bb-generation/tclap,Qointum/tclap,mirror/tclap,mirror/tclap,bb-generation/tclap,xguerin/tclap,xguerin/tclap,ufz/tclap,ufz/tclap,mirror/tclap,bb-generation/tclap,bb-generation/tclap,mirror/tclap,mjkoo/tclap,mc-server/TCLAP,eile/tclap,Qointum/tclap,mc-server/TCLAP,eile/tclap,mc-server/TCLAP