Added 'init()' function to git-flow-{feature,release,hotfix,support}, which gets called if subargument is not help
diff --git a/git-flow-feature b/git-flow-feature
index e97d678..4f7e839 100644
--- a/git-flow-feature
+++ b/git-flow-feature
@@ -36,10 +36,12 @@
 # policies, either expressed or implied, of Vincent Driessen.
 #
 
-require_git_repo
-require_gitflow_initialized
-gitflow_load_settings
-PREFIX=$(git config --get gitflow.prefix.feature)
+init() {
+  require_git_repo
+  require_gitflow_initialized
+  gitflow_load_settings
+  PREFIX=$(git config --get gitflow.prefix.feature)
+}
 
 usage() {
 	echo "usage: git flow feature [list] [-v]"