Modifying nm-dhclient-wlan0.conf ?

[Bruno Wolff III]

My short term goal is to set up resolv.conf the way I want without 
disabling network manager.
I set up a config file for dhclient, but it turns out that NetworkManager 
runs dhclient with the configfile set to one it generates insteqad of 
the normal one used by dhclient. For the first wireless interface the 
file is named /var/run/nm-dhclient-wlan0.conf .

Is there a way to control what is in that file using NetworkManager 
configuration?