Add \" to string regexps
Since d0fd4c7d, strings that are passed to regexps have "s at the beginning and end, and thus this has to be reflected in a regexp that should match the beginning or end of a string.
Since d0fd4c7d, strings that are passed to regexps have "s at the beginning and end, and thus this has to be reflected in a regexp that should match the beginning or end of a string.