"resolver.c", line 750: remark(1552): variable "trdataset" was set but never
          used
"resolver.c", line 3043: remark(1552): variable "have_sig" was set but never
          used

True and true.

"resolver.c", line 2194: warning(1551): variable "now" is used before its
          value is set

Moved setting of "now" to earlier in the function.