Patch from larry to fix some grammar errors.
diff --git a/date.c b/date.c
index 93b078b..6db3e28 100644
--- a/date.c
+++ b/date.c
@@ -199,7 +199,7 @@
 			date_conv_time(&tm_time, date_str);
 		}
 
-		/* Correct any day of week and day of year etc fields */
+		/* Correct any day of week and day of year etc. fields */
 		tm = mktime(&tm_time);
 		if (tm < 0)
 			error_msg_and_die(invalid_date, date_str);