T -> _ in Z time format

diff --git a/developer/bash/Z b/developer/bash/Z
index 7b77248..2997266 100755 (executable)
--- a/developer/bash/Z
+++ b/developer/bash/Z
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-/usr/bin/date -u +"%Y-%m-%d %H:%M:%SZ"
+/usr/bin/date -u +"%Y-%m-%d_%H:%M:%SZ"