usernames: Fix syntax, remove dup

Author: Matthias Koeppe

migrate.cfg.sagetracmigrationarchive

@@ -341,14 +341,12 @@ usernames = {
  'carus': 'xcaruso',
  'campbell': 'theref',
  'Braun': 'vbraun',
- 'Boussicault', 'sagetrac-boussica',
+ 'Boussicault': 'sagetrac-boussica',
  'Ben': 'bhutz',
  'beezer': 'rbeezer',
  'anne': 'anneschilling',
  'Andrew': 'sheerluck',
  'Alexander': 'alexanderdreyer',
- 'bsalisbury01': 'bsalisbury1',
- 'bsalisbury': 'bsalisbury1',
  'wstein': 'williamstein',
  'fhivert': 'hivert',
  'krcisman': 'kcrisman',
@@ -377,7 +375,6 @@ usernames = {
  'chrisgorecki': 'sagetrac-goreckc',
  'dkernn': 'dkrenn',
  'dakrenn': 'dkrenn',
- 'salisbury1': 'bsalisbury1',
  'rbradshaw': 'robertwb',
  'Scrimshaw': 'tscrim',
  'Travis': 'tscrim',
@@ -413,6 +410,7 @@ usernames = {
  'bhackl': 'behackl',
  'bsalisbury': 'bsalisbury1',
  'bsalisbury01': 'bsalisbury1',
+ 'salisbury1': 'bsalisbury1',
  'brucin': 'burcin',
  'burchin': 'burcin',
  'berocal': 'burcin',