#### When we've got a string which is a candidate for translation, we
should ignore it if it contains only format directives, that is, if
there are no alphabetic characters in it that are not a part of a `%'
directive. (Careful not to translate either "%s%s" or "%s: ".)
#### When we've got a string which is a candidate for translation, we
should ignore it if it contains only format directives, that is, if
there are no alphabetic characters in it that are not a part of a `%'
directive. (Careful not to translate either "%s%s" or "%s: ".)