termrc checks both (~ $#sysname 0) and (~ $sysname '').
The latter would cover the former, but is not possible
for `{} to return a null string in any circumstances, so
the check is superfluous.

Notes:
the current termrc may be excessively cautious, but
it works and we've beaten this subject to death.

Reference: /n/sources/patch/sorry/termrc-superfluous-sysname-check
Date: Tue May 22 20:38:14 CES 2007
Signed-off-by: kmaglione@comcast.net
Reviewed-by: geoff

--- /rc/bin/termrc	Tue May 22 20:36:58 2007
+++ /rc/bin/termrc	Tue May 22 20:36:57 2007
@@ -27,7 +27,7 @@
 if(! test -e /srv/cs)
 	ndb/cs -f $NDBFILE
 sysname=`{cat /dev/sysname}
-if (~ $#sysname 0 || ~ $sysname '') {
+if (~ $#sysname 0) {
 	sysname = gnot			# default
 	echo -n $sysname >/dev/sysname
 }