Changd `alias gsta='git stash'` to `alias gsta='git stash save'`.

plugins/git/git.plugin.zsh

@@ -199,7 +199,7 @@ alias gsps='git show --pretty=short --show-signature'
 alias gsr='git svn rebase'
 alias gss='git status -s'
 alias gst='git status'
-alias gsta='git stash'
+alias gsta='git stash save'
 alias gstaa='git stash apply'
 alias gstd='git stash drop'
 alias gstl='git stash list'