fix PR number

Author: zoghbi-a

CHANGES.rst

@@ -19,7 +19,7 @@ heasarc
 
 - Add support for astropy.table.Row in Heasarc.download_data and Heasarc.locate_data. [#3270]
 - Heasarc.locate_data returns empty rows with an error in the error_message column if there are
-  no data associated with that row rather than filtering it out. [#3271]
+  no data associated with that row rather than filtering it out. [#3275]
 
 
 Infrastructure, Utility and Other Changes and Additions