fix support of predefined GUC variables (in postgresql.conf)
-rw-r--r-- 65 .gitignore
-rw-r--r-- 1563 COPYRIGHT
-rw-r--r-- 301 Makefile
-rw-r--r-- 3505 README.plantuner
drwxr-xr-x - expected
-rw-r--r-- 9419 plantuner.c
drwxr-xr-x - sql