Set caller to suppress ssh configuration messages

They are offered both when the ssh session works but the called
program returns error and when control-c ends a session. Not really’
useful information in either case.

Change-Id: I4472694b2b48bba40813c7c303c8f580904b7329
Reviewed-by: Dan Johnson <>
diff --git a/src/ b/src/
index 4ce7f4a..7c0b7ab 100644
--- a/src/
+++ b/src/
@@ -45,6 +45,7 @@
+    ssh_cmd.env("FX_CALLER", "fargo");
     if verbose {
         println!("ssh_cmd = {:#?}", ssh_cmd);