fix dbtable gisprompt

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@38093 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/db.dropcolumn/db.dropcolumn.py

@@ -33,7 +33,7 @@
 #% key_desc : name
 #% description: Table from which to drop attribute column
 #% required : yes
-#% gisprompt: old,dbtable,dbtable
+#% gisprompt: old_dbtable,dbtable,dbtable
 #%end
 
 #%option

scripts/db.droptable/db.droptable.py

@@ -31,7 +31,7 @@
 #% key_desc : name
 #% description: Table to drop
 #% required : yes
-#% gisprompt: old,dbtable,dbtable
+#% gisprompt: old_dbtable,dbtable,dbtable
 #%end
 
 import sys