Fixing pre-commit-msg URL

URL referred to raw.github.com instead of raw.githubusercontent.com. Fixed.

Docker-DCO-1.1-Signed-off-by: Aaron Huslage <huslage@gmail.com> (github: huslage)
the last remaining raw.github.com URL's

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au> (github: SvenDowideit)
Merge pull request #5732 from SvenDowideit/pr_out_the_last_remaining_raw_github_com_url_s

the last remaining raw.github.com URL's