Ensure fagenrules handles incomplete lines

Anding echo here ensures at least one newline between each
concatenated .rules file, preventing a compiled.rules edge case.

init/fagenrules

@@ -84,7 +84,7 @@ fi
 umask 0137
 echo "## This file is automatically generated from $SourceRulesDir" >> "${TmpRules}"
 for rules in $(/bin/ls -1v ${SourceRulesDir} | grep "\.rules$") ; do
-	cat ${SourceRulesDir}/"${rules}"
+	cat ${SourceRulesDir}/"${rules}" && echo
 done | awk '
 BEGIN   {
         rest = 0;