Mention :close arg in caveat section of .close docs

Author: zoffixznet

doc/Type/IO/Handle.pod6

@@ -704,9 +704,10 @@ is I<recommended> on handles opened for reading as well, so that your program
 does not open too many files at the same time, triggering exceptions on further
 C<open> calls.
 
-As a simpler alternative, the L<IO::Path> type provides many reading and
-writing methods that let you work with files without dealing with file handles
-directly.
+Note several methods allow for providing C<:close> argument, to close the handle
+after the operation invoked by the method completes. As a simpler alternative,
+the L<IO::Path> type provides many reading and writing methods that let you work
+with files without dealing with file handles directly.
 
 =head2 method flush