In versions before Libevent 2.0.3-alpha, the option name needed to end with
a colon.
@param base the evdns_base to which to apply this operation
@param option the name of the configuration option to be modified
@param val the value to be set
@return 0 if successful, or -1 if an error occurred
Set the value of a configuration option.
The currently available configuration options are:
ndots, timeout, max-timeouts, max-inflight, attempts, randomize-case, bind-to, initial-probe-timeout, getaddrinfo-allow-skew.
In versions before Libevent 2.0.3-alpha, the option name needed to end with a colon.
@param base the evdns_base to which to apply this operation @param option the name of the configuration option to be modified @param val the value to be set @return 0 if successful, or -1 if an error occurred