The ManyZipFiles test creates "numFiles = 3000" .zip files to verify
that 6423026 is fixed.

It exits with a 'pass' or 'fail' but does not clean up the temporary .zip
files generated during the test. On shared testing machines with nightly
test runs the temp directory quickly fills up with dirt and spurious test
failures start to creep in because of that.


An example using one of our nightly test machines:

(otto@roque) ~ $ ls -l /c/winnt/test9999*
-rwx------+ 1 otto None 136 Jul 13 05:22 /c/winnt/test9999.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99990.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99991.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99992.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99993.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99994.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99995.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99996.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99997.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99998.zip
-rwx------+ 1 otto None 136 Aug 21 05:23 /c/winnt/test99999.zip

(otto@roque) ~ $ ls -1 /c/winnt | wc -l
147369