bugfix: function ln_parseFieldDescr() returns state value
bugfix: function ln_parseFieldDescr() returns state value

due to unitialized variable. This can also lead to invalid
returning no sample node where one would have to be created.

radu-gheorghe/liblognorm,aturetta/liblognorm,aturetta/liblognorm,radu-gheorghe/liblognorm,aturetta/liblognorm,janmejay/liblognorm,janmejay/liblognorm