Merge branch 'rt/completion-help'

Shell completion (in contrib/) updates.

* rt/completion-help:
  completion: add 'revisions' and 'everyday' to 'git help'
  completion: add option '--guides' to 'git help'

Author: gitster

contrib/completion/git-completion.bash

@@ -1339,15 +1339,15 @@ _git_help ()
 {
 	case "$cur" in
 	--*)
-		__gitcomp "--all --info --man --web"
+		__gitcomp "--all --guides --info --man --web"
 		return
 		;;
 	esac
 	__git_compute_all_commands
 	__gitcomp "$__git_all_commands $(__git_aliases)
 		attributes cli core-tutorial cvs-migration
-		diffcore gitk glossary hooks ignore modules
-		namespaces repository-layout tutorial tutorial-2
+		diffcore everyday gitk glossary hooks ignore modules
+		namespaces repository-layout revisions tutorial tutorial-2
 		workflows
 		"
 }