jumping to a line number

[Tennis Smith]

Hi,

I often get this sort of error when running a tcl
program:

(procedure "ipsec_start_traffic" line 23)

The line number given is relative to the start of
the procedure, _not_ to the beginning of the file
which contains the procedure, so using goto-line
doesn't apply here.

I can easily get to the beginning of the procedure,
so that isn't a problem. But then manually counting
down x number of lines into the procedure is tedious
and error-prone.

Is there a function/facility somewhere that I can use
to jump a specified number of lines from a particular
location?