Typo fixed

models/db_database.py

@@ -119,7 +119,7 @@ For large collaboration the first author followed by et al.: J. Doe et al."""
 tp_authors_cppm = \
 """List of authors separated by comma: P.-Y. Doe, J. Smith"""
 
-tr_report_numbers = \
+tp_report_numbers = \
 """List of report identifier separated by comma: 
 LHCb-PROC-2008-04, arXiv:0906.1516 """
  
@@ -147,7 +147,7 @@ db.define_table("publications",
     Field("conference_town", "string", label='Town'),
     Field("id_countries", db.countries, default=1, label='Country'),
     Field("conference_speaker", "string", label='Speaker', comment=tp_speaker),
-    Field("report_numbers", "string", comment=tr_report_numbers),
+    Field("report_numbers", "string", comment=tp_report_numbers),
     Field("id_reports", db.reports, default=1, label="Report type"),
     Field("authors_cppm", "text", notnull=True, comment=tp_authors_cppm),
     Field("id_teams", db.teams, default=1, label='Team'),