$ make test
...
selftest successful (33 checks).
for x in ./testdata/*.rpl; do echo -n "$x "; if ./testbound -p $x >/dev/null 2>&1; then echo OK; else echo failed; exit 1; fi done
-n ./testdata/acl.rpl 
OK
-n ./testdata/auth_nsec3_ent.rpl 
OK
-n ./testdata/auth_nsec3_wild.rpl 
OK
-n ./testdata/auth_xfr.rpl 
OK
...

     -n    Do not print the trailing newline character.  This may also be
           achieved by appending `\c' to the end of the string, as is done by
           iBCS2 compatible systems.  Note that this option as well as the
           effect of `\c' are implementation-defined in IEEE Std 1003.1-2001
           (``POSIX.1'') as amended by Cor. 1-2002.  Applications aiming for
           maximum portability are strongly encouraged to use printf(1) to
           suppress the newline character.
     Some shells may provide a builtin echo command which is similar or iden-
     tical to this utility.  Most notably, the builtin echo in sh(1) does not
     accept the -n option.  Consult the builtin(1) manual page.

for x in $(srcdir)/testdata/*.rpl; do echo -n "$$x ";

for x in $(srcdir)/testdata/*.rpl; do printf "%s" "$$x ";