Bug 20370: Misleading comment for bcrypt - #encrypt it; Instead it should be #hash it

This patch changes the wording of the comment

To test:

1) Check the wording of Line 67 of Koha/AuthUtils.pm
2) Apply the patch
3) Check that the wording has changed from "Encrypt it" to "Hash it"

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Koha/AuthUtils.pm

@@ -64,7 +64,7 @@ sub hash_password {
     # Set the cost to 8 and append a NULL
         $settings = '$2a$08$'.en_base64(generate_salt('weak', 16));
     }
-    # Encrypt it
+    # Hash it
     return bcrypt($password, $settings);
 }