illumos gate

Old nawk:

$ echo "THIS" | nawk 'END {print}'

$

Newer nawk and gawk:

$ echo "THIS" | nawk 'END {print}'
THIS
$

We should use print ""

This is a problem in files as
http://src.illumos.org/source/xref/illumos-gate/usr/src/lib/libxcurses/src/libc/xcurses/mkterm.awk

A plain print outputs unmatched comment lines with newer nawk versions.

The simple statement ‘print’ with no items is equivalent to ‘print $0’: it prints the entire current record. To print a blank line, use ‘print ""’, where "" is the empty string.

http://www.gnu.org/software/gawk/manual/html_node/Print.html