[ci skip] Clarify comments about libraries/drivers autoloading

Close #3964

1 files changed, 6 insertions, 4 deletions

diff --git a/application/config/autoload.php b/application/config/autoload.php
index 3f0bd24f2..4bc6bf0ad 100644
--- a/application/config/autoload.php
+++ b/application/config/autoload.php
@@ -45,8 +45,9 @@ $autoload['packages'] = array();
 | -------------------------------------------------------------------
 |  Auto-load Libraries
 | -------------------------------------------------------------------
-| These are the classes located in the system/libraries folder
-| or in your application/libraries folder.
+| These are the classes located in system/libraries/ or your
+| application/libraries/ directory, with the addition of the
+| 'database' library, which is somewhat of a special case.
 |
 | Prototype:
 |
@@ -63,8 +64,9 @@ $autoload['libraries'] = array();
 | -------------------------------------------------------------------
 |  Auto-load Drivers
 | -------------------------------------------------------------------
-| These classes are located in the system/libraries folder or in your
-| application/libraries folder within their own subdirectory. They
+| These classes are located in system/libraries/ or in your
+| application/libraries/ directory, but are also placed inside their
+| own subdirectory and they extend the CI_Driver_Library class. They
 | offer multiple interchangeable driver options.
 |
 | Prototype: