Fix typos

[NathanBaulch]

Just thought I'd contribute some typo fixes that I stumbled on. Nothing controversial (hopefully).

Use the following command to get a quick and dirty summary of the specific corrections made:

git diff HEAD^! --word-diff-regex='\w+' -U0 \
  | grep -E '\[\-.*\-\]\{\+.*\+\}' \
  | sed -r 's/.*\[\-(.*)\-\]\{\+(.*)\+\}.*/\1 \2/' \
  | sort | uniq -c | sort -n

FWIW, the top typos are:

• overriden (28)
• speices (6)
• messsage (4)
• unparseable (3)
• unkown (3)
• exension (1)
• rnger (1)
• any (1)
• betweeb (1)
• descripriptors (1)
• differet (1)
• inherting (1)
• lexographical (1)
• registation (1)
• relyed (1)
• superceded (1)

[puellanivis]

Thank you for your interest into contributing to this project.

Unfortunately this project does not accept GitHub pull requests as the source-of-truth for this project is hosted at https://go.googlesource.com/protobuf. This project page on GitHub is a mirror of that other repository.

If you would like to contribute to this project, please follow the contribution guidelines for instructions on how to send a change. If the change you'd like to make is more substantial or introduces any new features, then it should first be discussed on the issue tracker.