Fixed a call to pack() which created a 4-byte floating point number while all other calls to pack() or unpack() created or expected 8-byte floating point numbers.
Fixed a call to pack() which created a 4-byte floating point number while all other calls to
pack() or unpack() created or expected 8-byte floating point numbers.

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