Replaced escape_string() calls.  Removed trailing whitespace.
Replaced escape_string() calls.  Removed trailing whitespace.

inveniosoftware/invenio-formatter,tiborsimko/invenio-formatter,inveniosoftware/invenio-formatter,tiborsimko/invenio-formatter,inveniosoftware/invenio-formatter,tiborsimko/invenio-formatter