date: free timezone variable to avoid valgrind warning

* src/date.c (main): Free TZ variable to pacify valgrind, guarded
by IF_LINT.

diff --git a/src/date.c b/src/date.c
index 3670553212621d35e2e8e1b2416310915fc4fe29..269570b1a32ca4575e8eb4805f9e00effa1265ec 100644 (file)
--- a/src/date.c
+++ b/src/date.c
@@ -548,6 +548,8 @@ main (int argc, char **argv)
       ok &= show_date (format, when, tz);
     }
 
+  IF_LINT (tzfree (tz));
+
   return ok ? EXIT_SUCCESS : EXIT_FAILURE;
 }