Mercurial: add alias for pull with rebasing

plugins/mercurial/mercurial.plugin.zsh

@@ -9,6 +9,7 @@ alias hged='hg diffmerge'
 # pull and update
 alias hgi='hg incoming'
 alias hgl='hg pull -u'
+alias hglr='hg pull --rebase'
 alias hgo='hg outgoing'
 alias hgp='hg push'
 alias hgs='hg status'