(batch_convert): Put `' around filename in error in case it's empty.

diff --git a/src/date.c b/src/date.c
index 5741c6506582ced3ffda6c010c064669b950bc2c..744900e7773c47d61d97a14c35ed8c828287ab0d 100644 (file)
--- a/src/date.c
+++ b/src/date.c
@@ -103,7 +103,7 @@ batch_convert (const char *input_filename, const char *format)
       in_stream = fopen (input_filename, "r");
       if (in_stream == NULL)
        {
-         error (0, errno, "%s", input_filename);
+         error (1, errno, "`%s'", input_filename);
        }
     }