also skip xs

Author: jorisvandenbossche

ci/doctests.sh

@@ -54,7 +54,7 @@ if [ "$DOCTEST" ]; then
     fi
 
     pytest --doctest-modules -v pandas/core/generic.py \
-        -k"-_set_axis_name -_xs -droplevel -groupby -interpolate -pct_change -pipe -reindex -reindex_axis -resample -sample -to_json -to_xarray -transform -transpose -values"
+        -k"-_set_axis_name -_xs -droplevel -groupby -interpolate -pct_change -pipe -reindex -reindex_axis -resample -sample -to_json -to_xarray -transform -transpose -values -xs"
 
     if [ $? -ne "0" ]; then
         RET=1