Update memlock docs

README.md

@@ -25,7 +25,7 @@ Highly secure and easy to use GTK+ software for two-factor authentication that s
 | libsecret | 0.20 |
 | qrencode | 4.0.2 |
 
-:warning: Please note that the memlock value should be `>= 4 MB`. Any value less than this may cause issues when dealing with tens of tokens (especially when importing from third parties backups).
+:warning: Please note that the memlock value should be `>= 64 MB`. Any value less than this may cause issues when dealing with tens of tokens (especially when importing from third parties backups).
 See this [wiki section](https://github.com/paolostivanin/OTPClient/wiki/Secure-Memory-Limitations) for info on how to check the current value and set, if needed, a higher one.
 
 ## Features

src/common/common.c

@@ -14,15 +14,15 @@ get_max_file_size_from_memlock (void)
  struct rlimit r;
  if (getrlimit (RLIMIT_MEMLOCK, &r) == -1) {
  // couldn't get memlock limit, so falling back to a default, low value
- g_print ("[WARNING] your OS's memlock limit may be too low for you (64000 bytes). Please have a look at %s\n", link);
+ g_print ("[WARNING] your operating system's memlock limit may be too low for you. Please have a look at %s\n", link);
  return LOW_MEMLOCK_VALUE;
  } else {
  if (r.rlim_cur == -1 || r.rlim_cur > MEMLOCK_VALUE) {
  // memlock is either unlimited or bigger than needed, so defaulting to 'MEMLOCK_VALUE'
  return MEMLOCK_VALUE;
  } else {
  // memlock is less than 'MEMLOCK_VALUE'
- g_print ("[WARNING] your OS's memlock limit may be too low for you (current value: %d bytes).\n"
+ g_print ("[WARNING] your operating system's memlock limit may be too low for you (current value: %d bytes).\n"
  "This may cause issues when importing third parties databases or dealing with tens of tokens.\n"
  "For information on how to increase the memlock value, please have a look at %s\n", (gint32)r.rlim_cur, link);
  return (gint32)r.rlim_cur;
@@ -447,4 +447,4 @@ get_kf_ptr (void)
  g_free (cfg_file_path);
  g_key_file_free (kf);
  return NULL;
-}
+}