Compiler warning in linux for mpz/tests/t-get_sx

[wbhart]

gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I../.. -I../.. -I../../tests    -m64 -O2 -c t-get_sx.c
t-get_sx.c: In function 'check_max':
t-get_sx.c:121:3: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'intmax_t' [-Wformat]
t-get_sx.c:121:3: warning: format '%llX' expects argument of type 'long long unsigned int', but argument 3 has type 'intmax_t' [-Wformat]
t-get_sx.c:121:3: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'intmax_t' [-Wformat]
t-get_sx.c:121:3: warning: format '%llX' expects argument of type 'long long unsigned int', but argument 3 has type 'intmax_t' [-Wformat]
t-get_sx.c:126:3: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'intmax_t' [-Wformat]
t-get_sx.c:126:3: warning: format '%llX' expects argument of type 'long long unsigned int', but argument 3 has type 'intmax_t' [-Wformat]
t-get_sx.c:126:3: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'intmax_t' [-Wformat]
t-get_sx.c:126:3: warning: format '%llX' expects argument of type 'long long unsigned int', but argument 3 has type 'intmax_t' [-Wformat]
t-get_sx.c:135:3: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'intmax_t' [-Wformat]
t-get_sx.c:135:3: warning: format '%llX' expects argument of type 'long long unsigned int', but argument 3 has type 'intmax_t' [-Wformat]
t-get_sx.c:135:3: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'intmax_t' [-Wformat]
t-get_sx.c:135:3: warning: format '%llX' expects argument of type 'long long unsigned int', but argument 3 has type 'intmax_t' [-Wformat]

[wbhart]

Can't fix these because MSVC doesn't support the correct format specifiers as specified by the C standard.