Repeated options in temp.ini

[aleynaakyuz]

While I was working on PR #4915, I came across a repeated options problem with the small template bank generation test. The test code generates a file called temp.ini and in the file, the same option is repeated as

_CONDOR_SCHEDD_DAEMON_AD_FILE = /var/spool/condor/.schedd_classad
_condor_SCHEDD_DAEMON_AD_FILE = /var/spool/condor/.schedd_classad

Since case-sensitive options are enabled here, this duplication doesn’t normally cause an error. However, the alternative file-reading method I used in the PR triggered an error due to this repetition. @spxiwh