update and rewrite the description of the "package" attribute for

<import>

doc/ZConfig/zconfig.tex

@@ -491,12 +491,13 @@ The following elements are used to describe a schema:
     configuration file.)
   \end{attributedesc}
 
-  \begin{attributedesc}{package}{\datatype{dotted-name}}
-    Python-package style name that identifies a directory found on
-    \code{sys.path} containing a schema component in a file named
-    \file{component.xml} (unless the file name is overridden using
-    \attribute{file}).  Dots in the value are converted to directory
-    separators.
+  \begin{attributedesc}{package}{\datatype{dotted-suffix}}
+    Name of a Python package that contains the schema component being
+    imported.  The component will be loaded from the file identified
+    by the \attribute{file} attribute, or \file{component.xml} if
+    \attribute{file} is not specified.  If the package name given
+    starts with a dot (\character{.}), the name used will be the
+    current prefix and the value of this attribute concatenated.
   \end{attributedesc}
 
   \begin{attributedesc}{src}{\datatype{url-reference}}