docs: fix minor things in man-page howto
Signed-off-by: Karel Zak <kzak@redhat.com>
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@ -32,7 +32,7 @@ All manual pages need some sort of description. Write such here.
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\fB\-n\fR, \fB\-\-no\-argument\fR
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This option does not use argument.
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.TP
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\fB\-o\fR, \fB\-\-optional\fR [\fIargument\fR]
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\fB\-o\fR, \fB\-\-optional\fR[\fI=argument\fR]
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Tell in description an
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.I argument
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is optional, and what happens when is or is not given. Notice that
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