bash completion: Add long options for 'git rm'

Options added: --cached --dry-run --ignore-unmatch --quiet
Signed-off-by: NLee Marlow <lee.marlow@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

contrib/completion/git-completion.bash

@@ -1170,6 +1170,20 @@ _git_reset ()
 	__gitcomp "$(__git_refs)"
 }
 
+_git_rm ()
+{
+	__git_has_doubledash && return
+
+	local cur="${COMP_WORDS[COMP_CWORD]}"
+	case "$cur" in
+	--*)
+		__gitcomp "--cached --dry-run --ignore-unmatch --quiet"
+		return
+		;;
+	esac
+	COMPREPLY=()
+}
+
 _git_shortlog ()
 {
 	__git_has_doubledash && return
@@ -1425,6 +1439,7 @@ _git ()
 	rebase)      _git_rebase ;;
 	remote)      _git_remote ;;
 	reset)       _git_reset ;;
+	rm)          _git_rm ;;
 	send-email)  _git_send_email ;;
 	shortlog)    _git_shortlog ;;
 	show)        _git_show ;;