Fix strftime to use localized month names.

It was using the default locale (capital L) instead of the
current locale (lowercase l).

Bug 2030864
diff --git a/libc/tzcode/strftime.c b/libc/tzcode/strftime.c
index 930ecf4..ab713fb 100644
--- a/libc/tzcode/strftime.c
+++ b/libc/tzcode/strftime.c
@@ -225,12 +225,12 @@
                 if (modifier == '-') {
                     pt = _add((t->tm_mon < 0 ||
                                 t->tm_mon >= MONSPERYEAR) ?
-                                "?" : Locale->standalone_month[t->tm_mon],
+                                "?" : locale->standalone_month[t->tm_mon],
                                 pt, ptlim, modifier);
                 } else {
                     pt = _add((t->tm_mon < 0 ||
                                 t->tm_mon >= MONSPERYEAR) ?
-                                "?" : Locale->month[t->tm_mon],
+                                "?" : locale->month[t->tm_mon],
                                 pt, ptlim, modifier);
                 }
                 continue;