[script][common_options,figure,test_script] Change legends options to

titles for histograms.
4 jobs for fixes in 8 minutes and 46 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #140946
docker
build_linux_27

00:08:30

83.0%
passed #140947
docker
build_linux_36

00:08:29

83.0%
passed #140948
macosx
build_macosx_27

00:08:41

83.0%
passed #140949
macosx
build_macosx_36

00:07:58

83.0%