Merge pull request #1418 from Mehonoshin/patch-2

Added gwc(git whatchanged alias) to git plugin

plugins/git/git.plugin.zsh

@@ -38,6 +38,7 @@ alias gm='git merge'
 compdef _git gm=git-merge
 alias grh='git reset HEAD'
 alias grhh='git reset HEAD --hard'
+alias gwc='git whatchanged -p --abbrev-commit --pretty=medium'
 
 # Will cd into the top of the current repository
 # or submodule.