[Bug]: Help message does not contain some switches (-getProperty, -getTargetResult)
Issue Description
Some of the supported command line switches are not mentioned in the help message. For example -getProperty and -getTargetResult but there may be more.
Steps to Reproduce
msbuild -h
Expected Behavior
Contains help for -getProperty.
Actual Behavior
Does not contain help for -getProperty.
Analysis
All switches should be cross-checked against the help message strings to see what else is missing. It may also be useful to introduce a lightweight mechanism for keeping help up-to-date, for example by having to list the relevant string resource ID in s_parameterlessSwitchesMap / s_parameterizedSwitchesMap.
Versions & Configurations
No response
NOTE: Help message should also contain new switches -featureavailability and -fa from https://github.com/dotnet/msbuild/pull/9665