fix issue with centos 6.5 using script from util-linux-ng 2.17.2

my version of script does not take an argument to -t
it only outputs timing info to stderr
so I work around this by redirecting stderr to the tmp file, timingfname
If some version of script is different, we'd have to detect that and use it accordingly.

this is my `pip list` version of TermRecord
TermRecord (1.1.3)

# uname -r
2.6.32-358.18.1.el6.x86_64
# cat /etc/issue
CentOS release 6.5 (Final)
Kernel \r on an \m