Improve crash reports processing script output

This CL improves the output formatting to make the output look nicer.

Bug: 479224195
Change-Id: I2232fab7456c206d1aebae3f14c2c0571579354f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7620618
Reviewed-by: Hans Wennborg <hans@chromium.org>
Commit-Queue: Yuke Liao <liaoyuke@google.com>
Cr-Commit-Position: refs/heads/main@{#1595064}
NOKEYCHECK=True
GitOrigin-RevId: 94bd385c7bb95c9dc9f3fbb2228138a37c029a76