Make the 'to fetch or not to fetch' flag explicit in the other commands, too.

Only difference is that the default equals to:
0	for git-flow-feature
1	for git-flow-{release,hotfix,support}
diff --git a/git-flow-feature b/git-flow-feature
index 4a25a81..b9f18b7 100644
--- a/git-flow-feature
+++ b/git-flow-feature
@@ -57,7 +57,9 @@
 
 parse_args() {
 	# TODO: When we have a nice structured way of parsing flags with getopt,
-	# implement the --fetch flag, to set FLAG_FETCH=1
+	# implement the following flags:
+	# --fetch, to set FLAG_FETCH=1
+	# --no-fetch, to set FLAG_FETCH=0
 	NAME="$1"
 	BASE="${2:-$DEVELOP_BRANCH}"
 	if [ "$NAME" = "" ]; then