tweak error message

diff --git a/src/date.c b/src/date.c
index 6371f62..b94853a 100644 (file)
--- a/src/date.c
+++ b/src/date.c
@@ -231,8 +231,8 @@ main (int argc, char **argv)
     {
       error (0, 0, _("\
 the argument `%s' lacks a leading `+';\n\
-when using an option to specify date(s), any\n\
-non-option argument must be a format string beginning with `+'"),
+When using an option to specify date(s), any non-option\n\
+argument must be a format string beginning with `+'."),
             argv[optind]);
       usage (1);
     }