checker: Add checker, then linter

First run `make check`, then `make lint`. This is useful because Moodle
only extract the first 300 lines of output. If `make lint` is first,
that output is typically covered by the linter output, leaving out
students from seeing the checker output (which is more important).

Signed-off-by: Razvan Deaconescu <razvan.deaconescu@upb.ro>

checker/checker.sh

@@ -8,10 +8,10 @@ cp -r "$CHECKER_DATA_DIRECTORY"/../tests ..
 # Everything happens in the tests/ directory.
 pushd ../tests > /dev/null || exit 1
 
-echo -e "\n\n### RUNING LINTER\n\n"
-make lint
-
 echo -e "\n\n### RUNING CHECKER\n\n"
 make check
 
+echo -e "\n\n### RUNING LINTER\n\n"
+make lint
+
 popd > /dev/null || exit 1