b8edb9810a [rpc] Descriptions: Textual consistency fixes (Jon Layton)
Pull request description:
Tree-SHA512: fa22ddac94e95672579cc84309f1c3ea3a2dbf762e45a8ae9c121c4c5188bf8c19ff9458d49dd7ef760c3ae4226487612a2954e9a1a0e8b720116afeb718b46b
Backport of Core [[https://github.com/bitcoin/bitcoin/pull/14373 | PR14373]]