Review and consider lintian reported issues

$ lintian ../percona-toolkit_3.2.0-1_all.deb 
W: percona-toolkit: manpage-has-errors-from-pod2man usr/share/man/man1/pt-archiver.1p.gz:1384
N: 
N: This man page contains a section "POD ERRORS" generated by pod2man. This
N: sections lists errors in the POD syntax found by pod2man during the
N: generation of the man page.
N: 
N: Severity: warning
N: 
N: Check: documentation/man
N: 
W: percona-toolkit: manpage-has-errors-from-pod2man usr/share/man/man1/pt-config-diff.1p.gz:449
W: percona-toolkit: manpage-has-errors-from-pod2man usr/share/man/man1/pt-deadlock-logger.1p.gz:586
W: percona-toolkit: manpage-has-errors-from-pod2man ... use --no-tag-display-limit to see all (or pipe to a file/program)
I: percona-toolkit: manpage-without-executable usr/share/man/man1/percona-toolkit.1p.gz
N: 
N: Each manpage in /usr/share/man should have a reason to be there. This
N: manpage does not appear to have a valid reason to be shipped.
N: 
N: For manpages in sections 1 and 8, an executable (or a link to one)
N: should exist. This check currently considers all installation packages
N: created by the same sources, as long as they are present.
N: 
N: Refer to Debian Policy Manual section 12.1 (Manual pages) and
N: https://bugs.debian.org/583125 for details.
N: 
N: Severity: info
N: 
N: Check: documentation/man
N: 
I: percona-toolkit: spelling-error-in-manpage usr/share/man/man1/pt-archiver.1p.gz syncronize synchronize
N: 
N: Lintian found a spelling error in the manpage. Lintian has a list of
N: common misspellings that it looks for. It does not have a dictionary
N: like a spelling checker does.
N: 
N: If the string containing the spelling error is translated with the help
N: of gettext (with the help of po4a, for example) or a similar tool,
N: please fix the error in the translations as well as the English text to
N: avoid making the translations fuzzy. With gettext, for example, this
N: means you should also fix the spelling mistake in the corresponding
N: msgids in the *.po files.
N: 
N: Severity: info
N: 
N: Check: documentation/man
N: 
I: percona-toolkit: spelling-error-in-manpage usr/share/man/man1/pt-online-schema-change.1p.gz syncronize synchronize