fl_util.c: Fix off-by-one in memory allocation in fl_search_rec()
fl_util.c: Fix off-by-one in memory allocation in fl_search_rec()

Fixes a segfault when ncdc is built with clang. Not sure why gcc has
always generated good code from this, though.

srijan/ncdc,Tilka/ncdc,srijan/ncdc,srijan/ncdc,Tilka/ncdc