/usr/lib/iraf/extern/rvsao/rvupdate.msg is in iraf-rvsao 2.8.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | #-----------------------------------------------------------+
# RVSAO Radial Velocity Analysis Package |
# Smithsonian Astrophysical Observatory |
# Telescope Data Center |
# Version 2.8.3 March 27, 2014 |
# |
# *** Run rvrelearn to update parameters *** |
#-----------------------------------------------------------+
|