Fix variable scope

[KristofferFM]

The method Broker::parseEventForOrganizer is long and might not be that easy to read and understand. Near the end of the method, the variable $attendee which is used in major parts of the method as an iterator pointer, is suddenly re-used as an iterator pointer in another context. Even though this does not lead to any problems right now, it could be a problem in the future, i.e. when someone wants to extend the function. Therefore, I propose to rename the inner $attendee iterator variable.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.78%. Comparing base (61c968d) to head (0351e78).
⚠️ Report is 10 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #721   +/-   ##
=========================================
  Coverage     98.78%   98.78%           
- Complexity     1875     1877    +2     
=========================================
  Files            71       71           
  Lines          5272     5274    +2     
=========================================
+ Hits           5208     5210    +2     
  Misses           64       64           

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[phil-davis]

Backport to 4.5 branch is PR #742