adding file5.txt on  master
adding file4.txt on feature branch
adding file7.txt on  master
Merging from featureB branch.
adding file9.txt on  master
adding file8.txt on feature branch
Merge branch 'master' into featureC
adding file10.txt on feature branch
adding file11.txt on  master
Merge branch 'master' into featureD
adding file12.txt on feature branch
adding file13.txt on  master
Merge branch 'master' into featureE
adding file14.txt on feature branch
adding file15.txt on  master
Merge branch 'master' into featureF
modify test file12.txt