Create source dir only if not exist

bash/bashrc/rbashrc

@@ -24,8 +24,7 @@ if [ -f ~/.rbashenv ]; then
     . ~/.rbashenv
 fi
 
-mkdir -p "$RBASH_SOURCES"
-
+# The merged sources
 RBASH_MERGED="$RBASH_SOURCES/merged"
 
 # don't put duplicate lines or lines starting with space in the history.
@@ -114,6 +113,7 @@ function rbash_cache {
 _RBASH_LOADED=
 if [ ! -d "$RBASH_SOURCES" ]; then
 	_RBASH_MERGE_START=1
+	mkdir -p "$RBASH_SOURCES"
 fi
 
 function rbash_load {