Don't use \' groff sequence for apostrophe.

[sebastic]

The lintian QA tool reported an issue with the manpages:

This manual page uses the \' groff sequence. Usually, the intent is to generate an apostrophe, but that sequence actually renders as an acute accent.

For an apostrophe or a single closing quote, use plain '. For single opening quote, i.e. a straight downward line ' like the one used in shell commands, use '\(aq'.

In case this tag was emitted for the second half of a '\\' sequence, this is indeed no acute accent, but still wrong: A literal backslash should be written \e in the groff format, i.e. a '\\' sequence needs to be changed to '\e' which also won't trigger this tag.

[stevengj]

LGTM.