Use proper modifiers for size_t printing.
Use proper modifiers for size_t printing.

Eliminates build warnings.

simonjwright/stlink,12019/stlink,gtalusan/stlink,12019/stlink,fedorcomander/stlink,chaosAD/stlink,braincorp/stlink,ros2/stlink,braincorp/stlink,trigrass2/stlink,ros2/stlink,trigrass2/stlink,swegener/stlink,gtalusan/stlink,fedorcomander/stlink,chaosAD/stlink,simonjwright/stlink,swegener/stlink