redirect stderr to syslog and do some cosmetical changes

[akerekes]

These changes were introduced by #91 (among others). I've split that PR into smaller chunks in hope for easier merge.

[coveralls]

Coverage remained the same at 100.0% when pulling 06d517e on akerekes:redirect_stderr_to_syslog into e332fc9 on johnbellone:master.

[johnbellone]

Please keep in mind that on most Linux distributions this is merely a symlink. On Ubuntu I believe that /bin/sh is a symlink to dash by default.

[akerekes]

The important changes are lines 1 and 43, bash is needed for stderr redirection, and stderr redirection is needed to avoid losing information dumped to stderr.
The other two changes, line 23 and 44 are just cosmetic, I can remove them if you want.

[akerekes]

@johnbellone Did I answer your question?

[johnbellone]

Can you please rebase?

[akerekes]

I did. This is my first time to rebase a pull request, please verify it whether it looks good, pls.

[akerekes]

@johnbellone do you have any estimates when can this PR be merged? Thanks!

[lock]

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