(my_strftime): Update from FSF.

diff --git a/lib/strftime.c b/lib/strftime.c
index 4e6407a409aa7533874fc8520b006cd452dc3ecb..519c2998e13536297c88aed33cb00d763569ca1d 100644 (file)
--- a/lib/strftime.c
+++ b/lib/strftime.c
@@ -750,8 +750,9 @@ my_strftime (s, maxsize, format, tp)
              *u++ = modifier;
            *u++ = format_char;
            *u = '\0';
+           ubuf[0] = '\1';
            len = strftime (ubuf, sizeof ubuf, ufmt, tp);
-           if (len == 0)
+           if (len == 0 && ubuf[0] != '\0')
              return 0;
            cpy (len, ubuf);
          }