db.in.ogr: cosmetics when db connection is not defined

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@66900 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/db.in.ogr/db.in.ogr.py

@@ -80,7 +80,9 @@ def main():
 
     # check if table exists
     try:
-        s = grass.read_command('db.tables', flags = 'p', quiet=True)
+        nuldev = file(os.devnull, 'w+')
+        s = grass.read_command('db.tables', flags = 'p', quiet=True, stderr=nuldev)
+        nuldev.close()
     except CalledModuleError:
         # check connection parameters, set if uninitialized
         grass.read_command('db.connect', flags='c')