docs: break long lines

Author: kenjis

user_guide_src/source/libraries/uploaded_files.rst

@@ -2,8 +2,10 @@
 Working with Uploaded Files
 ###########################
 
-CodeIgniter makes working with files uploaded through a form much simpler and more secure than using PHP's ``$_FILES``
-array directly. This extends the :doc:`File class </libraries/files>` and thus gains all of the features of that class.
+CodeIgniter makes working with files uploaded through a form much simpler and
+more secure than using PHP's ``$_FILES`` array directly. This extends the
+:doc:`File class </libraries/files>` and thus gains all of the features of that
+class.
 
 .. note:: This is not the same as the File Uploading class in CodeIgniter 3.
     This provides a raw interface to the uploaded files with a few small features.

user_guide_src/source/libraries/validation.rst

@@ -1044,9 +1044,10 @@ file validation.
     files. Therefore, adding any general rules, like ``permit_empty``, to file
     validation rules array or string, the file validation will not work correctly.
 
-Since the value of a file upload HTML field doesn't exist, and is stored in the ``$_FILES`` global, the name of the input field will
-need to be used twice. Once to specify the field name as you would for any other rule, but again as the first parameter of all
-file upload related rules::
+Since the value of a file upload HTML field doesn't exist, and is stored in the
+``$_FILES`` global, the name of the input field will need to be used twice. Once
+to specify the field name as you would for any other rule, but again as the first
+parameter of all file upload related rules::
 
     // In the HTML
     <input type="file" name="avatar">