[PATCH][Cleanup] testsuite cleanup patches

[Masami Hiramatsu]

Hi,

I found that testsuite failed to cleanup some temporary files.
Here are 3 patches which fix following issues.

1. Bulk output files created by systemtap.printf/*b.exp are not erased.
  Basically, this issue was caused by passing local variables to as_root.

- testsuite-cleanup-tmpfile.patch fixes this issue by passing evaluated
 command string to as_root.


2. PROCFS.ko created by systemtap.base/procfs.exp is not erased.

- testsuite-cleanup-procfs.patch erases it at the tail of procfs.exp.


3. systemtap_test_module* created by systemtap.context/context.exp
   are not unloaded nor be erased. Actually, the context.exp has
   its cleanup routine but not uses it.

- testsuite-cleanup-context-testdir.patch invokes the cleanup routine
  at the tail of context.exp.


Here is an unsolved issue:
4. Some /tmp/stapXXXXX directories are not erased. I found one of these
   was created by systemtap.base/debugpath.exp, but there might be other
   scripts which also failed to erase. we need to dig it deeply.

Thanks,

-- 
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America) Inc.
Software Solutions Division

e-mail: mhiramat@redhat.com

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