--no-named-commands should be dropped

[Andrew Hutchings]

  -g [ --no-named-commands ] Named commands are disabled. Use \*
                                          form only, or use named commands only
                                          in the beginning of a line ending
                                          with a semicolon (;) Since version
                                          10.9 the client now starts with this
                                          option ENABLED by default! Disable
                                          with '-G'. Long format commands still
                                          work from the first line. WARNING:
                                          option deprecated; use
                                          --disable-named-commands instead.

This does nothing and should be dropped in favour of (working) --named-commands=false