Fix tab vs space in CHANGELOG

Co-authored-by: Gio Lodi <giovanni.lodi42@gmail.com>

Author: AliSoftware

CHANGELOG.md

@@ -12,7 +12,7 @@ _None_
 
 * Add the option for `an_localize_libs` to provide a `source_id` for each library being merged.  
   If provided, that identifier will be added as an `a8c-src-lib` XML attribute to the `<string>` nodes being updated with strings from said library.
-	This can be useful to help identify where each string come from in the resulting, merged `strings.xml`. [#351]
+  This can be useful to help identify where each string come from in the resulting, merged `strings.xml`. [#351]
 
 ### Bug Fixes