Fix merge

coin/members/management/commands/call_for_membership_fees.py

@@ -6,7 +6,6 @@ from dateutil.relativedelta import relativedelta
 from django.core.management.base import BaseCommand, CommandError
 from django.db.models import Max
 from django.conf import settings
-from django.db.models import Max
 
 from coin.utils import respect_language
 from coin.members.models import Member, MembershipFee
@@ -54,4 +53,5 @@ class Command(BaseCommand):
                             member=member, email=member.email))
                     cpt = cpt + 1
 
-        self.stdout.write('%d call for membership fees emails were sent' % cpt)
+        self.stdout.write("{number} call for membership fees emails were "
+                          "sent".format(number=cpt))