fix error updating rc.local

install.sh

@@ -127,7 +127,7 @@ make clean
 make
 make install
 echo "sane-find-scanner" >> /etc/scanbuttond/initscanner.sh
-sed -e 's/exit 0/\/usr\/bin\/scanbuttond\nexit 0/g' -i /etc/rc.local
+sed -e 's/does nothing./does nothing.\n\/usr\/bin\/scanbuttond/g' -i /etc/rc.local
 } 
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