XGRP               60 maint/gnulib/lib/modechange.c            && S_IRGRP == RGRP && S_IWGRP == WGRP && S_IXGRP == XGRP
XGRP               71 maint/gnulib/lib/modechange.c                       | (octal & XGRP ? S_IXGRP : 0)