Snippets for libisoburn 1.5.8 from Alpine armv7

Sourced from https://build.alpinelinux.org/buildlogs/build-edge-armv7/main/libisoburn/libisoburn-1.5.8-r0.log.

• xorriso/opts_p_z.c:489:54: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'off_t' {aka 'long long int'} [-Wformat=]
    489 |      sprintf(xorriso->result_line, "projid mapped: %lu -> %lu\n",
        |                                                    ~~^
        |                                                      |
        |                                                      long unsigned int
        |                                                    %llu
    490 |                                    from_low, to_low);
        |                                    ~~~~~~~~           
        |                                    |
        |                                    off_t {aka long long int}
  

• xorriso/opts_p_z.c:489:61: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'off_t' {aka 'long long int'} [-Wformat=]
    489 |      sprintf(xorriso->result_line, "projid mapped: %lu -> %lu\n",
        |                                                           ~~^
        |                                                             |
        |                                                             long unsigned int
        |                                                           %llu
    490 |                                    from_low, to_low);
        |                                              ~~~~~~          
        |                                              |
        |                                              off_t {aka long long int}
  

• xorriso/iso_img.c:290:8: warning: taking the absolute value of unsigned type 'char' has no effect [-Wabsolute-value]
    290 |    at= abs(pvd_time[16]);
        |        ^~~