gpgconf: Change displayed name of Dirmngr to "Key Acquirer".
* tools/gpgconf-comp.c (gc_component): Change printed name.
All network access is handled by Dirmngr so at least in the GUI option
dialog we should acknowledge that by changing the name to an issuer to
understand term. This is an update of
819bba75aaed11ecef2e274add173718358212b9 suggested by Neal Walfield.
The former term "Network Manager" conflicts with the well known GNOME
network manager tool.