Correct syntax of sed (hopefully)

diff --git a/org.glite.testsuites.ctb/LB/tests/lb-common-testbeds.sh b/org.glite.testsuites.ctb/LB/tests/lb-common-testbeds.sh
index 14e1ba4..f092314 100755 (executable)
--- a/org.glite.testsuites.ctb/LB/tests/lb-common-testbeds.sh
+++ b/org.glite.testsuites.ctb/LB/tests/lb-common-testbeds.sh
@@ -98,7 +98,7 @@ grep -E "\$GLITE_USER.*/bin/cat" /etc/sudoers > /dev/null 2> /dev/null
 if [ ! \$? = 0 ]; then
        printf "\n\$GLITE_USER\tALL=NOPASSWD: /bin/cat /etc/cron.d/glite-lb-purge.cron,/bin/cat /var/log/messages\n\n" >> /etc/sudoers
 fi
-sed -i /etc/sudoers 's/^Default\srequiretty/#Default requiretty/'
+sed -i 's/^Defaults[ \134]*requiretty/#Defaults\134trequiretty/' /etc/sudoers
 visudo -c
 
 echo cd > arrange_lb_test_user.sh