make: unifdef SUN5_0 (defined)

*** 129,143 ****
                                  break;
                          }
  
                          if ((counter > 5) && (!printed_warning)) {
                                  /* Print waiting message after 5 secs */
- #if defined(SUN5_0) || defined(HP_UX) || defined(linux)
                                  (void) getcwd(msg, MAXPATHLEN);
- #else
-                                 (void) getwd(msg);
- #endif
                                  fprintf(stderr,
                                          catgets(libmksdmsi18n_catd, 1, 162, "file_lock: file %s is already locked.\n"),
                                          name);
                                  fprintf(stderr,
                                          catgets(libmksdmsi18n_catd, 1, 163, "file_lock: will periodically check the lockfile %s for two minutes.\n"),
--- 129,139 ----
*** 175,187 ****
  #if !defined(linux)
          if (errno < sys_nerr) {
  #ifdef SUN4_x
                  strcat(msg, sys_errlist[errno]);
  #endif
- #ifdef SUN5_0
                  strcat(msg, strerror(errno));
- #endif
          } else {
                  len = strlen(msg);
                  sprintf(&msg[len], NOCATGETS("errno %d"), errno);
          }
  #else
--- 171,181 ----