Restore compression of duplicate log file entries.

This undoes the workaround for bug #964, which was an Xprintism.

os/log.c

@@ -498,15 +498,6 @@ VAuditF(const char *f, va_list args)
     prefix = AuditPrefix();
     len = vsnprintf(buf, sizeof(buf), f, args);
 
-#if 1
-    /* XXX Compressing duplicated messages is temporarily disabled to
-     * work around bugzilla 964:
-     *     https://freedesktop.org/bugzilla/show_bug.cgi?id=964
-     */
-    ErrorF("%s%s", prefix != NULL ? prefix : "", buf);
-    oldlen = -1;
-    nrepeat = 0;
-#else
     if (len == oldlen && strcmp(buf, oldbuf) == 0) {
 	/* Message already seen */
 	nrepeat++;
@@ -520,7 +511,6 @@ VAuditF(const char *f, va_list args)
 	nrepeat = 0;
 	auditTimer = TimerSet(auditTimer, 0, AUDIT_TIMEOUT, AuditFlush, NULL);
     }
-#endif
     if (prefix != NULL)
 	free(prefix);
 }