#13784: fix xml.sax.reader getColumn/LineNumber docs.

verification and patch by Emily Morehouse.
diff --git a/Doc/library/xml.sax.reader.rst b/Doc/library/xml.sax.reader.rst
index 7270153..14af050 100644
--- a/Doc/library/xml.sax.reader.rst
+++ b/Doc/library/xml.sax.reader.rst
@@ -229,12 +229,12 @@
 
 .. method:: Locator.getColumnNumber()
 
-   Return the column number where the current event ends.
+   Return the column number where the current event begins.
 
 
 .. method:: Locator.getLineNumber()
 
-   Return the line number where the current event ends.
+   Return the line number where the current event begins.
 
 
 .. method:: Locator.getPublicId()