pthread_setname_np.3: ffix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man3/pthread_setname_np.3

@@ -165,8 +165,8 @@ THREADFOO
 #define NAMELEN 16
 
 #define errExitEN(en, msg) \e
-            do { errno = en; perror(msg); exit(EXIT_FAILURE); \e
-        } while (0)
+                        do { errno = en; perror(msg); \e
+                             exit(EXIT_FAILURE); } while (0)
 
 static void *
 threadfunc(void *parm)