Took out support for empty XML MARC files and fixed some syntax issues.
Took out support for empty XML MARC files and fixed some syntax issues.

ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools,ubtue/ub_tools