git FAQ

$ git pull origin dev 
hint: Pulling without specifying how to reconcile divergent branches is
hint: discouraged. You can squelch this message by running one of the following
hint: commands sometime before your next pull:
hint: 
hint:   git config pull.rebase false  # merge (the default strategy)
hint:   git config pull.rebase true   # rebase
hint:   git config pull.ff only       # fast-forward only
hint: 
hint: You can replace "git config" with "git config --global" to set a default
hint: preference for all repositories. You can also pass --rebase, --no-rebase,
hint: or --ff-only on the command line to override the configured default per
hint: invocation.
From https://github.com/dream
 * branch            dev        -> FETCH_HEAD
Updating 3169c60..cec3a38
Fast-forward
...

解决方法：https://blog.csdn.net/wq6ylg08/article/details/114106272