reword "except Error as e:" into "except Error, e:" to be compatible with Python 2.5 (#5852)

plugins/inventory/digital_ocean.py

@@ -139,7 +139,7 @@ except ImportError:
 
 try:
     from dopy.manager import DoError, DoManager
-except ImportError as e:
+except ImportError, e:
     print "failed=True msg='`dopy` library required for this script'"
     sys.exit(1)
 

plugins/inventory/ec2.py

@@ -281,7 +281,7 @@ class Ec2Inventory(object):
                 for instance in reservation.instances:
                     self.add_instance(instance, region)
         
-        except boto.exception.BotoServerError as e:
+        except boto.exception.BotoServerError, e:
             if  not self.eucalyptus:
                 print "Looks like AWS is down again:"
             print e
@@ -297,7 +297,7 @@ class Ec2Inventory(object):
                 instances = conn.get_all_dbinstances()
                 for instance in instances:
                     self.add_rds_instance(instance, region)
-        except boto.exception.BotoServerError as e:
+        except boto.exception.BotoServerError, e:
             if not e.reason == "Forbidden":
                 print "Looks like AWS RDS is down: "
                 print e