Fix ASSIGNWITHINCONDITION checksrc warnings in os400sys.c #2525
All occurrences of assignment within conditional expression in
This was spurred by seeing
There should be no functional change from these changes, but as I don't have an OS/400 system it was done somewhat blind. Thus, this requires actual testing to go anywhere but it seemed a worthwhile exercise to reduce the number of checksrc warnings in the tree.
All occurrences of assignment within conditional expression in os400sys.c rewritten into two steps: first assignment and then the check on the success of the assignment. Also adjust related incorrect brace positions to match project indentation style. This was spurred by seeing "if((inp = input_token))", but while in there all warnings were fixed. There should be no functional change from these changes.
Nothing special to say about it: most of the updated code is dated 2007 and checksrc has never been applied to it before. The only thing we can hope is it does not break the IBM C compiler since it it is not tested, although not adding any feature.