MDL-74823 lib: normalize line endings for HTMLPurifier

Prior to this change, all the line endings in the imported HTMLPurifier
library were using CRLF (\r\n aka Windows style), but the HTMLPurifier
source and also the downloadable artefacts use LF (\n aka Linux style)
as line endings. This has been the case since
510d190382 when with the commit
"MDL-38672 import HTML Purifier 4.5.0" all line endings were changed
from LF to CRLF. There was no comment in the commit on why this change
was done.

As the original source uses LF, this commit partly reverts
510d190382 and goes back to LF as line
endings.

Signed-off-by: Daniel Ziegenberg <[email protected]>

lib/htmlpurifier/HTMLPurifier/ConfigSchema/schema/Core.AggressivelyRemoveScript.txt

@@ -1,16 +1,16 @@
-Core.AggressivelyRemoveScript
-TYPE: bool
-VERSION: 4.9.0
-DEFAULT: true
---DESCRIPTION--
-<p>
-    This directive enables aggressive pre-filter removal of
-    script tags.  This is not necessary for security,
-    but it can help work around a bug in libxml where embedded
-    HTML elements inside script sections cause the parser to
-    choke.  To revert to pre-4.9.0 behavior, set this to false.
-    This directive has no effect if %Core.Trusted is true,
-    %Core.RemoveScriptContents is false, or %Core.HiddenElements
-    does not contain script.
-</p>
---# vim: et sw=4 sts=4
+Core.AggressivelyRemoveScript
+TYPE: bool
+VERSION: 4.9.0
+DEFAULT: true
+--DESCRIPTION--
+<p>
+    This directive enables aggressive pre-filter removal of
+    script tags.  This is not necessary for security,
+    but it can help work around a bug in libxml where embedded
+    HTML elements inside script sections cause the parser to
+    choke.  To revert to pre-4.9.0 behavior, set this to false.
+    This directive has no effect if %Core.Trusted is true,
+    %Core.RemoveScriptContents is false, or %Core.HiddenElements
+    does not contain script.
+</p>
+--# vim: et sw=4 sts=4