fix run-tests

Author: snower

run-tests

@@ -2,10 +2,10 @@
 
 export LOG_LEVEL=debug
 
-for file in ./tests/*.py
+for file in ./tests/test_*.py
 do
     echo $file
-    exec nosetests $file \
+    nosetests $file \
         --logging-format='%(asctime)s [%(name)s] %(levelname)-6s %(message)s' \
         --with-coverage \
         --cover-package=tormysql