bug#55010: Compiling from git clone

[Ken Ingram]

Making all in .
make[2]: Entering directory '/home/kingram/src/coreutils'
  CC       lib/libcoreutils_a-randperm.o
lib/randperm.c: In function 'sparse_new':
lib/randperm.c:111:1: error: function might be candidate for attribute
'malloc' if it is known to return normally
[-Werror=suggest-attribute=malloc]
 sparse_new (size_t size_hint)
 ^~~~~~~~~~
cc1: all warnings being treated as errors
make[2]: *** [Makefile:15588: lib/libcoreutils_a-randperm.o] Error 1
make[2]: Leaving directory '/home/kingram/src/coreutils'
make[1]: *** [Makefile:21009: all-recursive] Error 1
make[1]: Leaving directory '/home/kingram/src/coreutils'
make: *** [Makefile:8267: all] Error 2