POSIX getlogin_r/LOGIN_NAME_MAX/TTY_NAME_MAX.

Bug: N/A
Test: ran tests
Change-Id: I97c8ecc82fb09c3fa4bb5e6f000d46f04f3d1702
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index c271a57..8b1d6de 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1341,6 +1341,11 @@
     wctrans_l; # introduced=26
 } LIBC_N;
 
+LIBC_P {
+  global:
+    getlogin_r; # future
+} LIBC_O;
+
 LIBC_PRIVATE {
   global:
     ___Unwind_Backtrace; # arm
@@ -1558,7 +1563,7 @@
     vfdprintf; # arm x86 mips
     wait3; # arm x86 mips
     wcswcs; # arm x86 mips
-} LIBC_O;
+} LIBC_P;
 
 LIBC_DEPRECATED {
   global:
@@ -1580,4 +1585,4 @@
     malloc_disable;
     malloc_enable;
     malloc_iterate;
-} LIBC_O;
+} LIBC_P;