1.3.3dev: Fix incorrect docstring
1.3.3dev: Fix incorrect docstring

Improve documentation for several other methods.

[skip ci]

Refs #12915.


git-svn-id: 0d96b0c1a6983ccc08b3732614f4d6bfcf9cbb42@16535 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac