pkg/report: reformat code
pkg/report: reformat code

There is some regression in Go formatting on tip.
I am constantly getting diffs after formatting.
Filed: https://github.com/golang/go/issues/25161

google/syzkaller,google/syzkaller,google/syzkaller,xairy/syzkaller,xairy/syzkaller,google/syzkaller,google/syzkaller,google/syzkaller,xairy/syzkaller,xairy/syzkaller,google/syzkaller,xairy/syzkaller,xairy/syzkaller,xairy/syzkaller