Fixed a problem with redirection of stdout/stderr. The specifier '2>&1'
should come *after* the redirection of stdout to /dev/null. For an
explanation and a simple demonstration of the differences, see:

	http://is.gd/8srJR
diff --git a/git-flow b/git-flow
index a7e4a26..7f8c90c 100755
--- a/git-flow
+++ b/git-flow
@@ -77,7 +77,7 @@
 	if [ "$1" != "" ] && ! echo "$1" | grep -q "^-"; then
 		SUBACTION="$1"; shift
 	fi
-	if ! type "cmd_$SUBACTION" > /dev/null 2>&1; then
+	if ! type "cmd_$SUBACTION" >/dev/null 2>&1; then
 		warn "Unknown subcommand: '$SUBACTION'"
 		usage
 		exit 1