wxGUI/dbmgr: fix editing values in attribute manager on Windows

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@63793 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/dbmgr/base.py

@@ -242,8 +242,11 @@ class VirtualAttributeList(wx.ListCtrl,
         
         while True:
             # os.linesep doesn't work here (MSYS)
-            record = outFile.readline().replace('\n', '')
-            
+            # not sure what the replace is for?
+            # but we need strip to get rid of the ending newline
+            # which on windows leaves \r in a last empty attribute table cell and causes error
+            record = outFile.readline().strip().replace('\n', '')
+
             if not record:
                 break