All symbols starting with `b' in pexpert/pexpert/i386

• boot_args pexpert/pexpert/i386/boot.h:231
• BOOT_LINE_LENGTH pexpert/pexpert/i386/boot.h:187
• BOOT_STRING_LEN pexpert/pexpert/i386/boot.h:136
• boot_video pexpert/pexpert/i386/boot.h:125