Fix linux.traceroute stdout formatting

[arm4b]

Reported in Slack community by @livelace

Original traceroute.sh which is part of linux.traceroute action doesn't preserve line separators, what's confusing for users, thinking that StackStorm itself eat some line separators.

@livelace By design StackStorm shows what he get from the script via stdout, stderr and exit code.

This small change should fix linux.traceroute action.

Before

./traceroute.sh google.com

traceroute to google.com (216.58.209.174), 30 hops max, 60 byte packets ...ae-3-3201.bar1.Budapest1.Level3.net (4.69.201.158) 24.733 ms 24.775 ms 24.971 ms 8 72.14.243.192 (72.14.243.192) 24.934 ms 24.892 ms 24.850 ms 9 209.85.243.119 (209.85.243.119) 45.224 ms 25.112 ms 25.077 ms 10 66.249.95.61 (66.249.95.61) 25.038 ms 25.150 ms 25.224 ms 11 bud02s21-in-f174.1e100.net (216.58.209.174) 25.183 ms 25.142 ms 24.755 ms

After

$ ./traceroute.sh google.com
traceroute to google.com (216.58.209.174), 30 hops max, 60 byte packets
...
 5  * * *
 6  ae-3-3201.bar1.Budapest1.Level3.net (4.69.201.158)  25.311 ms  24.348 ms  24.289 ms
 7  ae-3-3201.bar1.Budapest1.Level3.net (4.69.201.158)  24.247 ms  24.289 ms  24.229 ms
 8  72.14.243.192 (72.14.243.192)  24.426 ms  24.139 ms  24.392 ms
 9  209.85.243.119 (209.85.243.119)  24.501 ms  25.213 ms  24.424 ms
10  66.249.95.61 (66.249.95.61)  24.581 ms  24.549 ms  24.754 ms
11  bud02s21-in-f174.1e100.net (216.58.209.174)  24.700 ms  24.708 ms  24.488 ms

[codecov-io]

Codecov Report

Merging #3175 into master will increase coverage by -0.02%.

@@            Coverage Diff             @@
##           master    #3175      +/-   ##
==========================================
- Coverage    77.5%   77.48%   -0.02%     
==========================================
  Files         431      431              
  Lines       22264    22264              
==========================================
- Hits        17255    17251       -4     
- Misses       5009     5013       +4

Impacted Files	Coverage Δ
...on/st2common/transport/connection_retry_wrapper.py	75% <ø> (-13.46%)	❌
st2actions/st2actions/scheduler.py	83.67% <ø> (-6.12%)	❌
st2common/st2common/bootstrap/sensorsregistrar.py	78.64% <ø> (-3.88%)	❌
st2common/st2common/services/triggerwatcher.py	85.92% <ø> (-2.82%)	❌
st2api/st2api/controllers/v1/actionexecutions.py	87.39% <ø> (-2.17%)	❌
st2actions/st2actions/policies/concurrency.py	97.87% <ø> (-2.13%)	❌
st2common/st2common/rbac/decorators.py	84.38% <ø> (-1.56%)	❌
st2common/st2common/services/triggers.py	91.75% <ø> (-1.55%)	❌
st2api/st2api/controllers/v1/timers.py	76.92% <ø> (-1.28%)	❌
st2actions/st2actions/notifier/notifier.py	89.17% <ø> (-1.27%)	❌
... and 16 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b4c1e8b...f55138b. Read the comment docs.

[bigmstone]

👍

[Kami]

Thanks, good catch 👍

Would it also be possible to add some kind of test for it? :)