Adjusted function to use the new error codes. Changed some INSIST -> REQUIRE. Mapped ISC_R_NOMEMORY -> DNS_R_NOMEMORY for isc_lex_gettoken() result.
Adjusted function to use the new error codes. Changed some INSIST -> REQUIRE. Mapped ISC_R_NOMEMORY -> DNS_R_NOMEMORY for isc_lex_gettoken() result.