utilsUnescapeSearchText
Use this function before method@SearchSettings.set_search_text, to unescape the following sequences of characters: \n, \r, \t and \\. The purpose is to easily write those characters in a search entry.
Note that unescaping the search text is not needed for regular expression searches.
See also: func@utils_escape_search_text.
Return
the unescaped @text.
Parameters
text
the text to unescape.