remote: Use a default locale.

* src/cuirass/remote-server.scm (remote-server): Use a default locale.
* src/cuirass/remote-worker.scm (remote-worker): Ditto.

src/cuirass/remote-server.scm

@@ -426,6 +426,9 @@ exiting."
   (setvbuf (current-output-port) 'line)
   (setvbuf (current-error-port) 'line)
 
+  ;; Use a default locale.
+  (setlocale LC_ALL "en_US.utf8")
+
   (with-error-handling
     (let* ((opts (args-fold* args %options
                              (lambda (opt name arg result)

src/cuirass/remote-worker.scm

@@ -350,6 +350,9 @@ exiting."
   (setvbuf (current-output-port) 'line)
   (setvbuf (current-error-port) 'line)
 
+  ;; Use a default locale.
+  (setlocale LC_ALL "en_US.utf8")
+
   (with-error-handling
     (let* ((opts (args-fold* args %options
                              (lambda (opt name arg result)