I guess this is a typo. It makes sense to preceede is_array() with
isset() here since PHP throws a warning on unset variables nowadays.
However, is_array() should not be used if the following operation is
`foreach' as it would mask the fact that the array that is set is not
an array at all (maybe due to a bug). Rather want to catch it instead.
A bit of style along the way and `lint' target fixing.
Seeing PHP ignore text files makes it easier to lint over more
files for a simple reason: maybe someone sneaked a PHP file
into the repo and forgot the proper file extension, which is not
uncommon for utilities in *bin/ -- makes it easier to catch those.
Make "src" the implicit "/usr/local" so that nobody can
sneak in weird files in the base file system or potentially
overwrite them.
This is the last time, I swear... :)
