OAIHarvest: Fix for call_authorlist_extract

* Fixes the error in string formatting cause by the fact that
  the ticketid returned from create_authorlist_ticket() is not int.

Signed-off-by: Sebastian Witowski <sebastian.witowski@cern.ch>
1: D205 Blank line missing between one-line summary and description
4: I102 copyright year is outdated, expected 2014 but got 2012
32:28: E126 continuation line over-indented for hanging indent
39: D101 Docstring missing
41:30: E261 at least two spaces before inline comment
43: D400 First line should end with '.', not 's'
96: D401 First line should be imperative: 'return', not 'returns'
96: D209 Put multi-line docstring closing quotes on separate line
96: D202 No blank lines allowed *after* method docstring, found 1
96: D400 First line should end with '.', not 'y'
96: D205 Blank line missing between one-line summary and description
96: D208 Docstring is over-indented
102:26: E261 at least two spaces before inline comment
156:46: E261 at least two spaces before inline comment
174:46: E261 at least two spaces before inline comment
178: D102 Docstring missing
211:5: E303 too many blank lines (2)
211: D401 First line should be imperative: 'create', not 'creates'
211: D400 First line should end with '.', not 'e'
244:19: E127 continuation line over-indented for visual indent
258: D400 First line should end with '.', not 'e'
268: D400 First line should end with '.', not 'e'
272: D400 First line should end with '.', not 'e'
280: D400 First line should end with '.', not 'e'
317:13: F841 local variable 'dummy' is assigned to but never used
331: D400 First line should end with '.', not 't'
338:56: E251 unexpected spaces around keyword / parameter equals
338:58: E251 unexpected spaces around keyword / parameter equals
338: D209 Put multi-line docstring closing quotes on separate line
338: D205 Blank line missing between one-line summary and description
338: D208 Docstring is over-indented
407:37: E261 at least two spaces before inline comment
409:18: E261 at least two spaces before inline comment
418: D400 First line should end with '.', not 's'
436: D401 First line should be imperative: 'Thi', not 'This'
436: D400 First line should end with '.', not 'd'
436: D205 Blank line missing between one-line summary and description