Error code depending on number of files generated

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@454 f882894a-f735-0410-b71e-b25c423dba1c

tools/sfsnapshot

@@ -81,3 +81,8 @@ EOF
 
 rm -f $files
 
+# Work out success or failure
+expected=$(($# + 1))
+set -- $files
+[[ $# -ne $expected ]] && die "Expected $expected, got $#"
+exit 0