Add some verbiage indicating that an `IOException` will be thrown if a file with a name generated from the supplied prefix and suffix according to the described algorithm cannot be generated by the underlying system, whether that be due to the presence of one of more characters not supported by the underlying system or for some other reason.
------------- Commit messages: - 6426678: (spec) File.createTempFile(prefix, suffix, dir) needs clarification for illegal symbols in suffix Changes: https://git.openjdk.org/jdk/pull/20435/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20435&range=00 Issue: https://bugs.openjdk.org/browse/JDK-6426678 Stats: 6 lines in 1 file changed: 5 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/20435.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20435/head:pull/20435 PR: https://git.openjdk.org/jdk/pull/20435
