[TD]const-ness for dump function parameter

src/Mod/TechDraw/App/Geometry.cpp

@@ -1460,7 +1460,7 @@ std::string Vertex::getTagAsString(void) const
 //        throw Base::TypeError("Vertex tag can not be assigned as types do not match.");
 //}
 
-void Vertex::dump(char* title)
+void Vertex::dump(const char* title)
 {
     Base::Console().Message("TD::Vertex - %s - point: %s vis: %d cosmetic: %d  cosLink: %d cosTag: %s\n",
                             title, DrawUtil::formatVector(pnt).c_str(), hlrVisible, cosmetic, cosmeticLink,