[make tests save old log file if it exists
John Meacham <john@repetae.net>**20060209052543] hunk ./Makefile 67
+	-[ -e $@.log ] && mv -f $@.log $@.log.bak
hunk ./Makefile 70
+	-[ -e $@.log ] && mv -f $@.log $@.log.bak
hunk ./Makefile 73
+	-[ -e $@.log ] && mv -f $@.log $@.log.bak