[fs.class.path.general] Replace "encoded character type" with "character type"

Author: frederick-vs-ja

source/iostreams.tex

@@ -13782,7 +13782,7 @@
 \indexlibrarymember{value_type}{path}%
 \pnum
 \tcode{value_type} is a \keyword{typedef} for the
-operating system dependent encoded character type used to represent pathnames.
+operating system dependent character type\iref{basic.fundamental} used to represent pathnames.
 
 \indexlibrarymember{preferred_separator}{path}%
 \pnum