No need to require API 23 for strptime_l().

Since this is the same as strptime() on Android, we can make developers' lives slightly easier and save a useless entry in their PLTs.

Change-Id: Iacda4122309969fe56fc7aa1534b8f80b4a73b9f

Author: enh-google

libc/include/time.h

@@ -245,7 +245,7 @@ char* _Nullable strptime(const char* _Nonnull __s, const char* _Nonnull __fmt, s
 /**
  * Equivalent to strptime() on Android where only C/POSIX locales are available.
  */
-char* _Nullable strptime_l(const char* _Nonnull __s, const char* _Nonnull __fmt, struct tm* _Nonnull __tm, locale_t _Nonnull __l) __strftimelike(2) __INTRODUCED_IN(28);
+char* _Nullable strptime_l(const char* _Nonnull __s, const char* _Nonnull __fmt, struct tm* _Nonnull __tm, locale_t _Nonnull __l) __strftimelike(2) __RENAME(strptime);
 
 /**
  * [strftime(3)](https://man7.org/linux/man-pages/man3/strftime.3.html) formats