RFR: 8306483: (ch) Channels.newReader(ReadableByteChannel, Charset) refers to csName [v2]

[Brian Burkhalter]

> In the specification of `Channels.newReader(ReadableByteChannel,Charset)`, change `Charset.forName(csName).newDecoder()` to `charset.newDecoder()`.

Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:

  8306483: Same change for newWriter(WBC,Charset)

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/13547/files
  - new: https://git.openjdk.org/jdk/pull/13547/files/d6fb696a..e3872343

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13547&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13547&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/13547.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13547/head:pull/13547

PR: https://git.openjdk.org/jdk/pull/13547