Change logfile test for tcsh to strip() output string

There is a difference between tcsh in CentOS-5 vs. 6 that introduces
a difference in the way pexpect gets tcsh output.  This ends up generating
an extra \r\r\n in the CentOS-6 case.  No way around this was found in
the allotted time, so it was decided to accept that the logfile output
in CentOS-6 will just have an extra line at the top.  The test was changed
to ignore that difference.
Improve the hack for getting the logfile output to start with prompt
Remove leftover debug line
Merge pull request #2 from sot/tcsh-centos6

Fix problem with tcsh in Cent-OS6