Snippets for exiv2 0.28.8 from FreeBSD 150arm64

Sourced from https://pkg-status.freebsd.org/ampere5/data/latest-per-pkg/exiv2/0.28.8,1/150arm64-default.log.

• /wrkdirs/usr/ports/graphics/exiv2/work/exiv2-0.28.8/xmpsdk/src/XMPMeta.cpp:752:17: warning: variable 'opt1' set but not used [-Wunused-but-set-variable]
    752 |         XMP_OptionBits opt1 = 0;        // Check the general option bit macros.
        |                        ^
  

• /wrkdirs/usr/ports/graphics/exiv2/work/exiv2-0.28.8/xmpsdk/src/XMPMeta.cpp:753:17: warning: variable 'opt2' set but not used [-Wunused-but-set-variable]
    753 |         XMP_OptionBits opt2 = flag;
        |                        ^