Added explicit X:text to avoid spurious whitespaces. While use of XSLScript produces no trailing whitespace and resulting link is correct, it's believed that this is by chance. XSLT produced with perl-based XSLScript replacement is slightly different (trailing whitespace after "./" isn't stripped), and X:text is required to produce proper output.

<!--
  Copyright (C) Nginx, Inc.
  -->

X:stylesheet {

X:output method="text";

X:template = "link" {
    !{@id}
    X:text{ }
    !{substring-before(@doc, '.xml')}
    X:text{.html#}
    !{@id}
    X:text{;&#10;}
}

X:template = "links" {
    !! "link";
}

}