Review and correct PEP8 code style issues

[Zerpet]

We have the following PEP8 code style issues:

$ pep8 gpcheckintegrity
gpcheckintegrity:23:80: E501 line too long (112 > 79 characters)
gpcheckintegrity:27:28: E231 missing whitespace after ','
gpcheckintegrity:27:47: E231 missing whitespace after ','
gpcheckintegrity:56:80: E501 line too long (94 > 79 characters)
gpcheckintegrity:91:80: E501 line too long (85 > 79 characters)
gpcheckintegrity:92:80: E501 line too long (83 > 79 characters)
gpcheckintegrity:112:80: E501 line too long (117 > 79 characters)
gpcheckintegrity:123:80: E501 line too long (114 > 79 characters)
gpcheckintegrity:134:80: E501 line too long (110 > 79 characters)
gpcheckintegrity:141:80: E501 line too long (108 > 79 characters)
gpcheckintegrity:163:80: E501 line too long (98 > 79 characters)
gpcheckintegrity:166:80: E501 line too long (109 > 79 characters)
gpcheckintegrity:174:80: E501 line too long (113 > 79 characters)
gpcheckintegrity:176:80: E501 line too long (96 > 79 characters)
gpcheckintegrity:178:80: E501 line too long (106 > 79 characters)
gpcheckintegrity:194:80: E501 line too long (92 > 79 characters)
gpcheckintegrity:195:80: E501 line too long (83 > 79 characters)
gpcheckintegrity:209:80: E501 line too long (110 > 79 characters)
gpcheckintegrity:210:38: E127 continuation line over-indented for visual indent
gpcheckintegrity:225:1: W391 blank line at end of file

We should fix those at some point (and follow PEP8 so we don't have to fix these kind of issues anymore :)

This is the tool used to generate the report.