mpi3r: Track IO per target counter during queue poll with local var

[chandrakanth.patil_broadcom.com]

Summary

Use a local variable to fetch the value of "target->outstanding" once, and then utilize this same value both in the if condition
and when printing its value. This ensures consistency and avoids potential differences due to multiple reads. Additionally, add a
space between the %d format specifier and strings in the next line.

[imp]

Change looks good, but you'll want to edit the 'subject' of the commit message to be < 70 characters

[chandrakanth.patil_broadcom.com]

In D44494#1014836, @imp wrote:

Change looks good, but you'll want to edit the 'subject' of the commit message to be < 70 characters

It is done. I have reduced the headline to <70 characters.