Exception messages should be corrected.

[theyasub]

When I reviewed the project, I noticed many small exception syntax errors in some places. Letter case should be default case, old version is pascal case.
What do you think, can I fix this little mistake?

[GeorgeLeithead]

Do you have examples of where this occurs and what you thing the correct case should be for the examples?

[VladislavAntonyuk]

It is a part of #616

[CliffAgius]

Closed as answered