im_long, size_t appear to be unexpected sizes.

[Danack]

From https://github.com/Imagick/imagick/issues/526

/Users/polcpp/Desktop/imagick/imagickkernel_class.c:369:5: warning: format specifies type 'long long' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
                                origin_x
                                ^~~~~~~~
/Users/polcpp/Desktop/imagick/imagickkernel_class.c:391:5: warning: format specifies type 'long long' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
                                origin_x

/Users/polcpp/Desktop/imagick/imagick_class.c:2460:5: warning: format specifies type 'long' but the argument has type 'unsigned long long' [-Wformat]
                                (width * height) * map_len,
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~