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@@ -750,12 +750,12 @@ namespace cli
options. Such a file contains a set of options, each appearing on a
separate line optionally followed by space and an option value. Empty lines
and lines starting with <code>#</code> are ignored. Option values can
- be enclosed in double quotes (<code>""</code>) to preserve leading
- and trailing whitespaces as well as to specify empty values. If the
- value itself contains trailing or leading double quote, enclose
- it with an extra pair of double quotes, for example <code>""x""</code>.
- Non-leading and non-trailing quotes are interpreted as being part of
- the option value.</p>
+ be enclosed in double (<code>"</code>) or single (<code>'</code>)
+ quotes to preserve leading and trailing whitespaces as well as to
+ specify empty values. If the value itself contains trailing or leading
+ quote, enclose it with an extra pair of quotes, for example
+ <code>'"x"'</code>. Non-leading and non-trailing quotes are interpreted
+ as being part of the option value.</p>
<p>The semantics of providing options in a file is equivalent to providing
the same set of options in the same order on the command line at the