patch 7.4.1550
Problem:    Cannot load packages early.
Solution:   Add the ":packloadall" command.
diff --git a/src/main.c b/src/main.c
index 076898c..7bbf248 100644
--- a/src/main.c
+++ b/src/main.c
@@ -634,7 +634,7 @@
 # endif
 	TIME_MSG("loading plugins");
 
-	source_packages();
+	ex_packloadall(NULL);
 	TIME_MSG("loading packages");
     }
 #endif