Lint misc/icinga.pp

* ensure found on line but it's not the first attribute
* double quoted string containing no variables
* two-space soft tabs not used
* standardize indetation to four spaces
* indentation of => is not properly aligned
* surround user/groups names with single quotes
* split a few long lines
* one file {} statement per file
* remove most trailing semicolons
* one include per line

Change-Id: I4ccdb79878c0af511f95e00a9e44220434c4de8a
Merge "Lint misc/icinga.pp" into production