[prezto] Give up on RUBYGEMS_GEMDEPS
change
commit 88763bb476e76c592891a587c2450c564a42dd1d
author Alpha Chen <alpha.chen@gmail.com>
date
parent 9e3508b9 
diff --git a/src/prezto b/src/prezto
index 1dadc8c1..bf31568e 160000
--- a/src/prezto
+++ b/src/prezto
@@ -1 +1 @@
-Subproject commit 1dadc8c13070ed4ff00121873d3b64165b513cd1
+Subproject commit bf31568e678734dee2ab03872d0f564d5601bcda