Use default message when doing git merge

in git 1.7.10, the default behavior when merging is to provide a message (like when you make a commit), to use the old behavior (put the default message if no message is provided) put those to lines in your .bashrc or .bash_profile file

GIT_MERGE_AUTOEDIT=no
export GIT_MERGE_AUTOEDIT

Related protips:

fatal: refusing to merge unrelated histories