I had to change line 47 from:
VMT922=`ls -l driver.c | grep "define compat_bool bool"` to
VMT922=`cat driver.c | grep "define compat_bool bool"`
That was a typo! Actually something that I missed between the previous test which was testing for the date on the file however because it displays differently depending on the Guest OS, etc. I settled for testing against info in the FILES file.