* robustness/cleanup fixes:

- mu-util.c: don't raise errors when fputs failes (this would spam us when a
    pipe broke)
  - mu-cmd-server.c: handle SIGPIPE, ignore empty command lines

lib/mu-util.c

@@ -431,12 +431,7 @@ mu_util_fputs_encoded (const char *str, FILE *stream)
 		g_free (conv);
 	}
 
-	if (rv == EOF) { /* note, apparently, does not set errno */
-		g_warning ("%s: fputs failed", __FUNCTION__);
-		return FALSE;
-	}
-
-	return TRUE;
+	return (rv == EOF) ? FALSE : TRUE;
 }