Merge branch 'jc/completion-no-chdir'

* jc/completion-no-chdir:
  completion: use "git -C $there" instead of (cd $there && git ...)

contrib/completion/git-completion.bash

@@ -281,16 +281,12 @@ __gitcomp_file ()
 # argument, and using the options specified in the second argument.
 __git_ls_files_helper ()
 {
-	(
-		test -n "${CDPATH+set}" && unset CDPATH
-		cd "$1"
-		if [ "$2" == "--committable" ]; then
-			git diff-index --name-only --relative HEAD
-		else
-			# NOTE: $2 is not quoted in order to support multiple options
-			git ls-files --exclude-standard $2
-		fi
-	) 2>/dev/null
+	if [ "$2" == "--committable" ]; then
+		git -C "$1" diff-index --name-only --relative HEAD
+	else
+		# NOTE: $2 is not quoted in order to support multiple options
+		git -C "$1" ls-files --exclude-standard $2
+	fi 2>/dev/null
 }
 
 
@@ -522,7 +518,7 @@ __git_complete_index_file ()
 		;;
 	esac
 
-	__gitcomp_file "$(__git_index_files "$1" "$pfx")" "$pfx" "$cur_"
+	__gitcomp_file "$(__git_index_files "$1" ${pfx:+"$pfx"})" "$pfx" "$cur_"
 }
 
 __git_complete_file ()