Merge branch 'jc/coding-guidelines'
* jc/coding-guidelines:
CodingGuidelines: avoid "test <cond> -a/-o <cond>"
CodingGuidelines: on splitting a long line
CodingGuidelines: on comparison
CodingGuidelines: do not call the conditional statement "if()"
CodingGuidelines: give an example for shell function preamble
CodingGuidelines: give an example for control statements
CodingGuidelines: give an example for redirection
CodingGuidelines: give an example for case/esac statement
CodingGuidelines: once it is in, it is not worth the code churn