This function doesn't follow our convention of naming functions.

This function doesn't follow our convention of naming functions.

To allow for fault injection of the virCommand dry run,
add the ability to register a callback. The callback will
be passed the argv, env and stdin buffer and is expected
to return the exit status and optionally fill stdout and
stderr buffers.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Commit a1cbe4b5 added a check for spaces around assignments and this
patch extends it to checks for spaces around '=='.  One exception is
virAssertCmpInt where comma after '==' is acceptable (since it is a
macro and '==' is its argument).
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

So far it's just virCommandSetDryRun.

Adding tests for new virKMod{Config|Load|Unload}() API's.

A test for virKModIsBlacklisted() would require some setup which cannot
be assumed.