Fix the sysconf _SC_2_VERSION test.

Not sure how this ended up broken. Too many branches!

Bug: http://b/64565873
Test: ran tests

(cherry picked from commit 6c135f4c41c0fafcf270aea5202adc6e68e04b76)

Change-Id: Ie7078541d2a75fb2fbcf03e78a49707307b674c0
diff --git a/tests/unistd_test.cpp b/tests/unistd_test.cpp
index a81f112..1881fd4 100644
--- a/tests/unistd_test.cpp
+++ b/tests/unistd_test.cpp
@@ -837,6 +837,7 @@
   VERIFY_SYSCONF_UNSUPPORTED(_SC_2_FORT_DEV);
   VERIFY_SYSCONF_UNSUPPORTED(_SC_2_FORT_RUN);
   VERIFY_SYSCONF_UNSUPPORTED(_SC_2_UPE);
+  VERIFY_SYSCONF_POSIX_VERSION(_SC_2_VERSION);
   VERIFY_SYSCONF_POSITIVE(_SC_JOB_CONTROL);
   VERIFY_SYSCONF_POSITIVE(_SC_SAVED_IDS);
   VERIFY_SYSCONF_POSIX_VERSION(_SC_VERSION);
@@ -952,7 +953,6 @@
   VERIFY_SYSCONF_UNSUPPORTED(_SC_2_CHAR_TERM);
   VERIFY_SYSCONF_UNSUPPORTED(_SC_2_LOCALEDEF);
   VERIFY_SYSCONF_UNSUPPORTED(_SC_2_SW_DEV);
-  VERIFY_SYSCONF_UNSUPPORTED(_SC_2_VERSION);
 
   VERIFY_SYSCONF_UNSUPPORTED(_SC_XOPEN_CRYPT);
   VERIFY_SYSCONF_UNSUPPORTED(_SC_XOPEN_ENH_I18N);