#429 Spelling

[Dimitri Papadopoulos]

Another typo in line 1456 of HISTORY.txt:
Fail-save → Failsafe

I'd run codespell myself, but I haven't been using Sourceforge and Subversion for years.

[Dimitri Papadopoulos]

Here is a git patch which fixes all the spelling errors found under docutils and web.

[Günter Milde]

Thank you for the patch.
Applied in r8860.