RFR: 8330686: Fix typos in the DatabaseMetaData javadoc [v2]

[Jin Kwon]

> Fix typos within the `DatabaseMetaData.java`.

Jin Kwon has updated the pull request incrementally with one additional commit since the last revision:

  [JDK-8330686] Update copyright year

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Changes:
  - all: https://git.openjdk.org/jdk/pull/18860/files
  - new: https://git.openjdk.org/jdk/pull/18860/files/fbd41746..75f0b111

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18860&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18860&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18860.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18860/head:pull/18860

PR: https://git.openjdk.org/jdk/pull/18860