Added Travis fix to display stacktrace by gdb on crash

[ethouris]

No description provided.

[codecov-commenter]

Codecov Report

Merging #2565 (ffa3f84) into master (fdb9389) will increase coverage by 0.72%.
The diff coverage is 43.33%.

@@            Coverage Diff             @@
##           master    #2565      +/-   ##
==========================================
+ Coverage   65.91%   66.63%   +0.72%     
==========================================
  Files         100      100              
  Lines       19822    19795      -27     
==========================================
+ Hits        13065    13190     +125     
+ Misses       6757     6605     -152     

Impacted Files	Coverage Δ
srtcore/logging.h	98.21% <ø> (+3.76%)	⬆️
srtcore/core.cpp	61.51% <40.74%> (+1.61%)	⬆️
srtcore/api.cpp	55.14% <66.66%> (+1.85%)	⬆️
srtcore/common.cpp	37.32% <0.00%> (-0.93%)	⬇️
srtcore/queue.cpp	81.75% <0.00%> (+0.44%)	⬆️
test/test_bonding.cpp	98.94% <0.00%> (+1.05%)	⬆️
srtcore/congctl.cpp	83.41% <0.00%> (+2.59%)	⬆️
... and 3 more

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