impr: trim whitespace from XML responses
impr: trim whitespace from XML responses

Enable the `trim_whitespace` option for the XML `EventReader`.

rusoto/rusoto,DualSpark/rusoto,ford-prefect/rusoto,mattico/rusoto,mthjones/rusoto,mthjones/rusoto,DualSpark/rust-aws,indiv0/rusoto,mattico/rusoto,rusoto/rusoto,SecurityInsanity/rusoto,DualSpark/rusoto,rusoto/rusoto,cmsd2/rusoto,DualSpark/rust-aws,ford-prefect/rusoto,SecurityInsanity/rusoto,DualSpark/rusoto,noggleboggle/rusoto,DualSpark/rust-aws,mattico/rusoto